Solana Transaction & Address Screening Delays

Update timeline

1. investigating Sep 09, 2026, 01:55 PM UTC

   Status: Investigating We are currently investigating an issue affecting sol. Our engineering team is identifying the root cause. Affected components SOL (Degraded performance)

2. monitoring Sep 10, 2026, 02:54 PM UTC

   Status: Monitoring Identified – Our engineering team is actively investigating intermittent processing delays affecting the evaluation and screening of Solana transactions and addresses. • Impact: During daily global network peak activity windows, clients may experience latency in Solana evaluation results and webhook deliveries. Peak delays can intermittently reach up to 60 to 90 minutes. • Data Integrity: All incoming transactions and screening requests are safely queued. No data or evaluation requests are dropped, and records are processed sequentially as queues normalize. All other supported blockchains remain unaffected. Root Cause & Context: Recent Solana network protocol updates—most notably the activation of SIMD-0286, which expanded block compute unit limits from 60M to 100M CUs—have significantly increased the density of transactions processed per block across the network. While this upgrade was documented and implemented by the network as a backward-compatible, non-breaking protocol change (requiring no data schema modifications), the downstream effect has been a substantial surge in sustained transaction throughput and block payload volumes during high-traffic periods. Although our infrastructure was aligned with the protocol specification, the resulting bursts in on-chain volume during peak hours have caused temporary bottlenecks in data parsing and risk evaluation queues. Current Actions: • We have deployed temporary compute and queue-scaling resources to absorb ingestion spikes and reduce queue recovery times. • Engineering is rolling out targeted ingestion pipeline enhancements to scale our continuous throughput capacity in line with sustained network load. • Continuous monitoring is in place, and we are dynamically adjusting queue allocations during peak surges. We will provide further updates as additional performance optimizations are deployed to the production environment. Affected components SOL (Degraded performance)

3. monitoring Sep 11, 2026, 04:12 PM UTC

   Status: Monitoring A processing delay is currently active. Ingestion queues began accumulating latency again around 15:00 UTC, and our engineering team is actively monitoring queue processing rates as parsing workers absorb the current surge in block data. 48-Hour Network & Ingestion Summary Over the past two days (September 10–11), our Solana ingestion pipeline has experienced intermittent queuing bottlenecks during global network peak-volume windows: • Thursday, September 10: Sustained elevated throughput across the Solana network created significant ingestion queues, reaching a peak lag of ~16,300 blocks between 06:00 and 08:00 UTC (approximately 60–90 minutes of evaluation latency) before normalizing around 22:00 UTC. • Friday, September 11 (00:00–15:00 UTC): Queues stabilized completely, with pipeline processing operating in near real-time throughout the early and midday hours. • Friday, September 11 (15:00 UTC – Present): Entering the network's daily peak volume window, a new processing backlog is actively building. Parsing workers continue to evaluate incoming blocks sequentially. Key Customer Takeaways • Data Integrity: No requests, transactions, or screening payloads are dropped. All events remain safely buffered in the ingestion queue. • Impact: Address and transaction screening evaluations, as well as associated webhook notifications, are currently experiencing intermittent processing delays. • Mitigation: Dynamic worker capacity and temporary queue buffers remain provisioned to accelerate throughput during peak traffic periods. Our team is continuously monitoring queue metrics and pipeline throughput, and we will provide a follow-up performance update in 24 hours. Affected components SOL (Degraded performance)

4. monitoring Sep 15, 2026, 10:05 AM UTC

   Status: Monitoring Current Status (September 15) Ingestion and evaluation queues are currently clearing a recent spike. During the morning peak window on September 15, transfer screening queues experienced a sharp volume surge, peaking at ~2,100 queued items before worker capacity began steadily absorbing the backlog (currently recovered to under 500 and trending downward). Intermittent latency on real-time Solana address/transaction evaluations and webhook deliveries is expected while this backlog normalizes. 7-Day Performance & Queue Trends (September 9–15) • September 9–10: Network peak traffic windows drove elevated queue depths averaging ~1,000 items, resulting in periodic 60–90 minute evaluation delays. • September 11–14 (Weekend & Monday): Processing stabilized significantly. Over the weekend and through Monday, queue depths remained low and flat, with the pipeline running in near real-time. • Tuesday, September 15 (Today): A concentrated burst in network volume drove a sharp intra-day queue spike to a 7-day high of 2.1k items. Scaling workers engaged immediately, and the backlog is actively draining. Key Customer Takeaways • Zero Data Loss: All incoming transactions and screening requests remain safely queued; no evaluations or webhooks are dropped. • Processing Order: Requests are evaluated sequentially in FIFO order as the queue clears. • Ongoing Mitigation: Dynamic worker allocation remains active during network volume surges while longer-term throughput optimizations continue in development. Our team continues to monitor queue recovery and pipeline throughput closely. Affected components SOL (Degraded performance)

5. monitoring Sep 17, 2026, 02:33 PM UTC

   Status: Monitoring Current Status & 48-Hour Trend (September 15–17) Following the elevated queues observed earlier in the week, the Solana ingestion pipeline has demonstrated significantly improved baseline stability over the past 48 hours: • September 15 (Afternoon/Evening): Elevated transfer queues gradually cleared from ~850 items, fully normalizing by 03:00 UTC on Wednesday, September 16. • September 16 – Midday September 17: The pipeline maintained sustained real-time processing throughput, with minor, brief volume spikes (peaking around ~180 items) resolving rapidly. • September 17 (Current): A slight uptick in queue depth is emerging heading into the daily global peak traffic window. Dynamic worker capacity remains active to absorb incoming transaction volume. Engineering Roadmap & Long-Term Resolution While temporary capacity scaling and dynamic buffer allocations continue to absorb standard network surges effectively, our engineering teams are actively developing a comprehensive architectural upgrade to permanently expand continuous ingestion and parsing throughput. Given the extensive scope of this pipeline migration and the rigorous benchmarking required across production-grade datasets, the full rollout of these structural enhancements is scheduled to deploy across phases over the coming weeks, targeting complete implementation within the next month. Operational Highlights • Zero Data Loss: All incoming transactions and screening requests remain completely protected; no evaluations or webhooks are dropped. • Sequential Execution: Queues are processed in standard FIFO order, with minimal latency expected outside peak network congestion periods. • Ongoing Oversight: Our infrastructure team continues 24/7 monitoring of queue health and will deploy intermediate performance optimizations as components become ready. We will continue to share operational progress and milestones as deployment phases advance. Affected components SOL (Degraded performance)

6. monitoring Sep 21, 2026, 07:53 AM UTC

   Status: Monitoring Current Status (September 21, Morning UTC) The Solana ingestion pipeline has returned to stable operational baselines following a weekend of consistent throughput. Queues from a brief, minor volume uptick early this morning have fully normalized, and current transaction screening is processing with near-zero latency. Performance & Queue Trends (September 17–21) • Thursday, September 17 (Afternoon/Evening): A peak-window surge accumulated latency starting around 13:00 UTC, with queue depth topping out at ~765 items between 16:00 and 20:00 UTC before fully clearing by early morning on Friday, September 18. • Friday, September 18 – Sunday, September 20: The pipeline maintained strong stability across the entire weekend. Minor localized volume peaks on Saturday evening reached under ~180 items and drained rapidly without creating meaningful evaluation delays. • Monday, September 21 (Early Morning): A modest volume increase between 00:00 and 04:00 UTC peaked at ~190 items and cleared steadily by 06:00 UTC. Operational & Engineering Update • Queue Behavior: Overall queue depth over the last 4 days showed marked improvement compared to previous weeks, with the average queue depth dropping to ~85 items across the period. • Data Integrity: Zero requests or screening events have been dropped; all incoming transactions continue to be processed sequentially in standard FIFO order. • Architectural Roadmap: Engineering remains on schedule with ongoing testing and phased development of the permanent high-throughput pipeline migration, targeting deployment completion within the next several weeks. We will continue active 24/7 queue monitoring and provide periodic performance updates as engineering milestones are completed. Affected components SOL (Degraded performance)

7. monitoring Sep 24, 2026, 11:12 AM UTC

   Status: Monitoring Current Status (September 24, 11:00 UTC) The Solana ingestion pipeline is currently operating near baseline with minimal queue activity. Evaluation queues remain low, and real-time screening and webhook deliveries are processing with standard turnaround times. 7-Day Performance & Queue Summary (September 17–24 UTC) Over the past week, the ingestion pipeline demonstrated sustained baseline improvement compared to early-September surges, with queue depths and resolution times stabilizing significantly: • September 17–18: The backlog from late last week peaked at ~750 items before fully clearing by early morning on September 18. • September 18–20 (Weekend): The pipeline maintained steady near real-time processing, with minimal queue fluctuations (staying under 150 items). • September 21–22: Daily network activity saw moderate volume upticks, peaking briefly at ~300 items before clearing rapidly under dynamic worker allocations. • September 23–24: Queues remained consistently low (under 120 items), with no significant evaluation backlogs observed. Engineering Roadmap Progress • Current Mitigations: Adjusted ingestion buffers and dynamic worker capacity continue to absorb standard network spikes effectively, preventing the extended multi-thousand block backlogs observed earlier in the month. • Long-Term Architectural Upgrade: Development of the dedicated, high-throughput ingestion pipeline remains on track. Internal testing and benchmarking are proceeding across staging environments, and rollout of this permanent structural solution is proceeding according to the planned phased timeline over the coming weeks. Key Customer Takeaways • Data Integrity: Zero data loss. All incoming transaction evaluations and webhook events continue to be safely buffered and processed sequentially. • Current Impact: Minimal to none under current traffic conditions; minor, short-lived queuing may still occur during concentrated global network peak hours. • Ongoing Oversight: Engineering continues 24/7 telemetry monitoring on Solana ingestion health. We will provide another operational progress update as key deployment milestones approach. Affected components SOL (Degraded performance)

8. monitoring Sep 28, 2026, 06:19 AM UTC

   Status: Monitoring Current Status (September 28, 07:00 UTC) The Solana ingestion pipeline has fully recovered and is operating normally. Early this morning, a surge in transaction volume caused temporary processing delays. The backlog has now been cleared, and Solana screening results and webhook deliveries are processing at normal speed. Summary (September 25–28) • September 25–27: Processing ran smoothly with near real-time results. Only small, short-lived increases in volume were observed, with no noticeable delays. • September 28 (Early Morning): A sharp increase in transaction volume caused a backlog starting around 02:30 UTC. It peaked around 05:30 UTC and was fully cleared shortly after 06:00 UTC. Key Customer Takeaways • No Data Loss: All transactions and webhook events were safely queued and processed in order. • Current Impact: None. Processing is back to normal. • Long-Term Fix: Work on our upgraded, higher-capacity pipeline remains on schedule and is designed to handle surges like this one without delays. We continue to monitor the pipeline 24/7 and will share further updates as needed. Affected components SOL (Degraded performance)

9. monitoring Sep 29, 2026, 06:51 AM UTC

   Status: Monitoring Current Status (September 29, 06:40 UTC) The Solana ingestion pipeline has fully recovered and is operating normally. Increased transaction volume caused temporary processing delays on September 28, but the backlog has now been cleared, and Solana screening results and webhook deliveries are processing at normal speed. Summary (September 25–29) • September 25–27: Processing ran smoothly with near real-time results. Only small, short-lived increases in volume were observed, with no noticeable delays. • September 28 (Early Morning): A sharp increase in transaction volume caused a backlog starting around 02:30 UTC. It peaked around 05:30 UTC and was fully cleared shortly after 06:00 UTC. • September 28 (Afternoon) – September 29 (Early Morning): A second rise in transaction volume caused another backlog, which peaked around 23:00 UTC and gradually cleared, with processing returning to normal by approximately 03:45 UTC. Key Customer Takeaways • No Data Loss: All transactions and webhook events were safely queued and processed in order. • Current Impact: None. Processing is back to normal, and all other supported blockchains remain unaffected. • Long-Term Fix: Work on our upgraded, higher-capacity pipeline remains on schedule and is designed to handle surges like these without delays. We continue to monitor the pipeline 24/7 and will share further updates as needed. Affected components SOL (Degraded performance)

10. monitoring Sep 30, 2026, 06:25 AM UTC

    Status: Monitoring Current Status (September 30, 06:20 UTC) The Solana ingestion pipeline is operating normally. Following the temporary processing delays on September 28, processing has remained stable for more than 24 hours, and Solana screening results and webhook deliveries are processing at normal speed. Summary (September 25–30) • September 25–27: Processing ran smoothly with near real-time results. Only small, short-lived increases in volume were observed, with no noticeable delays. • September 28 (Early Morning): A sharp increase in transaction volume caused a backlog starting around 02:30 UTC. It peaked around 05:30 UTC and was fully cleared shortly after 06:00 UTC. • September 28 (Afternoon) – September 29 (Early Morning): A second rise in transaction volume caused another backlog, which peaked around 23:00 UTC and gradually cleared, with processing returning to normal by approximately 03:45 UTC. • September 29 – September 30: Processing ran smoothly with near real-time results. Only small, short-lived increases in volume were observed, with no noticeable delays. Key Customer Takeaways • No Data Loss: All transactions and webhook events were safely queued and processed in order. • Current Impact: None. Processing is back to normal, and all other supported blockchains remain unaffected. • Long-Term Fix: Work on our upgraded, higher-capacity pipeline remains on schedule and is designed to handle surges like these without delays. We continue to monitor the pipeline 24/7 and will share further updates as needed. Affected components SOL (Degraded performance)

11. monitoring Oct 01, 2026, 06:15 AM UTC

    Status: Monitoring Current Status (October 1, 06:00 UTC) The Solana ingestion pipeline is operating normally, and Solana screening results and webhook deliveries are processing at normal speed. A moderate increase in transaction volume yesterday evening was absorbed without significant delays, and processing has remained stable since. Upcoming Maintenance Maintenance to implement the long-term solution for the Solana processing delays is tentatively planned for October 15–22. We will confirm the exact date on October 5–6. Summary (September 25 – October 1) • September 25–27: Processing ran smoothly with near real-time results. Only small, short-lived increases in volume were observed, with no noticeable delays. • September 28 (Early Morning): A sharp increase in transaction volume caused a backlog starting around 02:30 UTC. It peaked around 05:30 UTC and was fully cleared shortly after 06:00 UTC. • September 28 (Afternoon) – September 29 (Early Morning): A second rise in transaction volume caused another backlog, which peaked around 23:00 UTC and gradually cleared, with processing returning to normal by approximately 03:45 UTC. • September 29 – September 30 (Daytime): Processing ran smoothly with near real-time results and no noticeable delays. • September 30 (Evening): A moderate increase in transaction volume between approximately 16:30 and 21:00 UTC caused slightly longer processing times. Queue levels remained well below those seen on September 28 and returned to normal by around 21:00 UTC. • October 1: Processing has remained stable, with only minor, short-lived fluctuations. Key Customer Takeaways • No Data Loss: All transactions and webhook events were safely queued and processed in order. • Current Impact: None. Processing is operating normally, and all other supported blockchains remain unaffected. • Long-Term Fix: The long-term solution will be implemented during the upcoming maintenance (see Upcoming Maintenance above). We continue to monitor the pipeline 24/7 and will share further updates as needed. Affected components SOL (Degraded performance)

12. monitoring Oct 02, 2026, 06:17 AM UTC

    Status: Monitoring Current Status (October 2, 06:00 UTC) Solana processing has been stable over the past 24 hours, with screening results and webhook deliveries arriving at normal speed. Yesterday's busiest period, in the afternoon, saw only a small rise in queue activity that cleared on its own, and overnight processing has been consistently smooth. This marks several consecutive days of steady performance since the delays on September 28. Upcoming Maintenance We are tentatively planning maintenance between October 15 and 22 to roll out the long-term solution for the Solana processing delays. The exact date will be confirmed on October 5–6. Summary (September 25 – October 2) • September 25–27: Transactions were processed in near real time throughout this period. Occasional small spikes in volume were handled without any noticeable impact. • September 28 (Early Morning): A sudden surge in transaction volume created a backlog from around 02:30 UTC. Queue levels reached their highest point at about 05:30 UTC, and processing was back on track shortly after 06:00 UTC. • September 28 (Afternoon) – September 29 (Early Morning): Volume rose again later in the day, leading to a second backlog. It was at its largest around 23:00 UTC and steadily decreased overnight, with normal processing restored by approximately 03:45 UTC. • September 29 – September 30 (Daytime): Processing was steady and fast, with no delays affecting customers. • September 30 (Evening): Between approximately 16:30 and 21:00 UTC, higher transaction volume led to somewhat slower processing. The queue stayed far smaller than during the September 28 events and was back to normal levels by around 21:00 UTC. • October 1: The day was largely uneventful. A small rise in volume between approximately 13:30 and 17:15 UTC was cleared quickly and did not cause meaningful delays. • October 2 (So Far): Since midnight UTC, queue levels have stayed close to zero, and all transactions have been processed in near real time. Key Customer Takeaways • Data Integrity: No transactions or webhook events have been lost; every item was held safely in the queue and processed in sequence. • Current Impact: There is no impact at this time. Solana is running normally, and no other supported blockchains have been affected. • Long-Term Fix: The permanent solution will be put in place as part of the upcoming maintenance described above. Our team keeps a 24/7 watch on the pipeline, and we will post further updates whenever there is something new to share. Affected components SOL (Degraded performance)

13. monitoring Oct 06, 2026, 03:13 PM UTC

    Status: Monitoring Current Status (October 6, 15:00 UTC) Solana processing is running smoothly, and screening results and webhook deliveries are being delivered without delays. Apart from a short-lived backlog in the early hours of October 3, performance has been steady throughout the past several days. Summary (October 2–6) • October 2: Processing remained steady throughout the day, with only a few small increases in activity during the evening that cleared without noticeable delays. • October 3 (Early Morning): A brief surge in volume caused a short backlog starting around 00:15 UTC. It peaked at approximately 02:30 UTC and was cleared by around 04:00 UTC. • October 3 – October 6: Processing has been stable since. A small rise in activity on the afternoon of October 5 cleared within a short time and caused no noticeable impact. Key Customer Takeaways • Data Integrity: No transactions or webhook events have been lost; everything was held safely in the queue and processed in order. • Current Impact: None at this time. Solana is operating normally, and other supported blockchains have not been affected. • Long-Term Fix: Work on the long-term solution for the Solana processing delays is ongoing, and we will share maintenance details soon. We are monitoring the pipeline around the clock and will share new updates as they become available. Affected components SOL (Degraded performance)

14. monitoring Oct 07, 2026, 07:37 AM UTC

    Status: Monitoring Current Status (October 7, 07:00 UTC) Solana is operating normally, with screening results and webhook deliveries processing at their usual speed. Overnight, a modest rise in activity was handled smoothly, and the pipeline has remained stable through this morning. Upcoming Maintenance: Solana Data Storage Optimization On October 20, from 14:00 to 22:00 UTC (16:00–00:00 CEST), we are tentatively planning to release an optimization to how Solana transaction data is stored, aimed at improving transfer processing speed. What this means for Monitor users: 1. Your historical checks and new Solana transfers will remain fully available. 2. Updates (rechecks) of some historical transfers may be unavailable for up to 8 hours. 3. To build paths from the source or destination of funds in a transfer, you will need to update the transfer first. This update will be free of charge. We will publish a scheduled maintenance notice once the date is confirmed. Summary (October 6–7) • October 6 (Afternoon – Evening): Activity stayed low and steady, with only minor fluctuations in the queue. • October 6 (Late Evening): Between approximately 22:15 UTC and midnight, transaction volume picked up for a short period. Queue levels stayed far below those of earlier incidents and returned to normal without causing significant delays. • October 7 (So Far): The pipeline has been running steadily, apart from a brief, small uptick around 05:40 UTC that cleared within minutes. Key Customer Takeaways • Data Integrity: All transactions and webhook events continue to be safely queued and processed in order; nothing has been lost. • Current Impact: No impact at this time. Solana is working as expected, and other supported blockchains remain unaffected. • Long-Term Fix: The storage optimization planned for October 20 is designed to improve Solana transfer processing speed (see Upcoming Maintenance above). Our team continues to monitor Solana processing 24/7, and we will keep this page updated as the maintenance date gets closer. Affected components SOL (Degraded performance)

15. monitoring Oct 08, 2026, 12:14 PM UTC

    Status: Monitoring Current Status (October 8, 12:00 UTC) Solana screening results and webhook deliveries are being processed at normal speed. Over the last day, the pipeline handled a couple of short increases in activity without any significant delays, and it is currently running smoothly. Upcoming Maintenance: Solana Data Storage Optimization We are tentatively planning to release an optimization to how Solana transaction data is stored on October 20, from 14:00 to 22:00 UTC (16:00–00:00 CEST). The goal of this change is to improve transfer processing speed. What this means for Monitor users: 1. Your historical checks and new Solana transfers will remain fully available. 2. Updates (rechecks) of some historical transfers may be unavailable for up to 8 hours. 3. To build paths from the source or destination of funds in a transfer, you will need to update the transfer first. This update will be free of charge. Once the date is confirmed, we will publish a scheduled maintenance notice. Summary (October 7–8) • October 7 (Daytime): Queue levels stayed low throughout the day, with only small, routine fluctuations. • October 7 (Late Evening): From approximately 20:30 to 22:45 UTC, a short rise in transaction volume briefly increased queue activity, peaking around 21:10 UTC. It cleared on its own without causing noticeable delays. • October 8 (So Far): Processing has been steady overnight and this morning. A small uptick between roughly 06:30 and 07:00 UTC was absorbed within minutes. Key Customer Takeaways • Data Integrity: Every transaction and webhook event continues to be safely queued and processed in sequence, with no data lost. • Current Impact: None. Solana is functioning normally, and there is no effect on other supported blockchains. • Long-Term Fix: The October 20 storage optimization is intended to make Solana transfer processing faster (details in Upcoming Maintenance above). We are keeping a close eye on Solana processing at all times and will post further updates as we approach the maintenance date. Affected components SOL (Degraded performance)

16. monitoring Oct 09, 2026, 07:45 AM UTC

    Status: Monitoring Current Status (October 9, 07:30 UTC) Solana processing is running normally this morning, with screening results and webhook deliveries arriving at their usual speed. Yesterday evening brought a longer period of elevated activity than in recent days, but the pipeline worked through it steadily, and queues have remained low since shortly before midnight UTC. Upcoming Maintenance: Solana Data Storage Optimization On October 20, between 14:00 and 22:00 UTC (16:00–00:00 CEST), we are tentatively planning to roll out an optimization to how Solana transaction data is stored. This change is designed to speed up transfer processing. What this means for Monitor users: 1. Your historical checks and new Solana transfers will remain fully available. 2. Updates (rechecks) of some historical transfers may be unavailable for up to 8 hours. 3. To build paths from the source or destination of funds in a transfer, you will need to update the transfer first. This update will be free of charge. A scheduled maintenance notice will follow as soon as the date is confirmed. Summary (October 8–9) • October 8 (Afternoon): Queue activity stayed low, with only minor, routine movement. • October 8 (Evening): Starting around 15:20 UTC, transaction volume rose in two waves. The first peaked at approximately 15:40 UTC and eased by around 18:00 UTC; the second peaked at roughly 19:45 UTC and cleared by about 21:50 UTC. During this window, some screening results may have taken slightly longer than usual, although queue levels remained well below those seen during the late-September incidents. • October 9 (So Far): Overnight and early-morning processing has been steady, with only small, brief fluctuations. Key Customer Takeaways • Data Integrity: No data has been lost; all transactions and webhook events were held safely in the queue and processed in order. • Current Impact: None at the moment. Solana is operating as expected, and other supported blockchains are unaffected. • Long-Term Fix: The storage optimization scheduled for October 20 aims to improve Solana transfer processing speed (see Upcoming Maintenance above). We remain focused on monitoring Solana performance around the clock and will continue to share updates ahead of the maintenance window. Affected components SOL (Degraded performance)

17. monitoring Oct 12, 2026, 08:16 AM UTC

    Status: Monitoring Current Status (October 12, 08:00 UTC) Solana processing is operating normally, and screening results and webhook deliveries are being delivered at their regular pace. Following a backlog in the early hours of October 11, which was fully cleared that morning, the pipeline has stayed stable for more than 24 hours. Upcoming Maintenance: Solana Data Storage Optimization We are tentatively planning to introduce an optimization to how Solana transaction data is stored on October 20, from 14:00 to 22:00 UTC (16:00–00:00 CEST). The purpose of this change is to make transfer processing faster. What this means for Monitor users: 1. Your historical checks and new Solana transfers will remain fully available. 2. Updates (rechecks) of some historical transfers may be unavailable for up to 8 hours. 3. To build paths from the source or destination of funds in a transfer, you will need to update the transfer first. This update will be free of charge. We will share a scheduled maintenance notice once the date has been confirmed. Summary (October 9–12) • October 9 (Rest of Day): Activity stayed low for most of the day. A short rise in volume between approximately 14:15 and 15:30 UTC, peaking around 15:00 UTC, was cleared quickly. • October 10: Processing ran steadily throughout the day, with only a minor fluctuation in the evening. • October 11 (Early Morning): Beginning around 00:30 UTC, increased transaction volume gradually built up a backlog, which reached its highest point at approximately 05:00 UTC. Processing caught up over the following hours, and the queue was cleared by around 07:45 UTC. During this period, some screening results and webhook deliveries may have been delayed. Queue levels remained well below those of the late-September incidents. • October 11 (Rest of Day) – October 12 (So Far): The pipeline has remained stable since, apart from a brief, small uptick around 19:00 UTC on October 11 that cleared within minutes. Key Customer Takeaways • Data Integrity: All transactions and webhook events were safely retained in the queue and processed in order; no data was lost. • Current Impact: None at present. Solana is running normally, and other supported blockchains have not been affected. • Long-Term Fix: The October 20 storage optimization is intended to improve Solana transfer processing speed (see Upcoming Maintenance above). We continue to monitor Solana processing 24/7 and will provide further updates as the maintenance date approaches. Affected components SOL (Degraded performance)

18. monitoring Oct 13, 2026, 08:22 AM UTC

    Status: Monitoring Current Status (October 13, 08:00 UTC) Solana processing is running normally, with screening results and webhook deliveries arriving on time. A backlog that built up late yesterday evening was cleared shortly after 23:00 UTC, and queue levels have stayed low throughout the night and this morning. Upcoming Maintenance: Solana Data Storage Optimization On October 20, from 14:00 to 22:00 UTC (16:00–00:00 CEST), we are tentatively planning to deploy an optimization to how Solana transaction data is stored, with the aim of improving transfer processing speed. What this means for Monitor users: 1. Your historical checks and new Solana transfers will remain fully available. 2. Updates (rechecks) of some historical transfers may be unavailable for up to 8 hours. 3. To build paths from the source or destination of funds in a transfer, you will need to update the transfer first. This update will be free of charge. A scheduled maintenance notice will be published once the date is confirmed. Summary (October 12–13) • October 12 (Daytime): Processing was steady for most of the day, with only a small, brief uptick around 16:50 UTC. • October 12 (Late Evening): From approximately 20:45 UTC, the queue began to grow steadily, reaching its peak shortly after 23:00 UTC. It was then cleared quickly, with processing back to normal by around 23:15 UTC. During this window, some screening results and webhook deliveries may have been delayed. • October 13 (So Far): The pipeline has remained stable overnight and through this morning, with no delays observed. Key Customer Takeaways • Data Integrity: No data was lost; all transactions and webhook events were safely queued and processed in order. • Current Impact: None at this time. Solana is operating normally, and other supported blockchains remain unaffected. • Long-Term Fix: The storage optimization planned for October 20 is designed to improve Solana transfer processing speed (see Upcoming Maintenance above). We continue to monitor Solana processing around the clock and will share further updates ahead of the maintenance. Affected components SOL (Degraded performance)

19. monitoring Oct 14, 2026, 07:38 AM UTC

    Status: Monitoring Current Status (October 14, 07:30 UTC) Solana is performing well, with screening results and webhook deliveries processed without delay. Over the past day, queue levels have stayed consistently close to zero, and no processing issues have been observed. Upcoming Maintenance: Solana Data Storage Optimization A migration to optimize how Solana transaction data is stored is scheduled for October 20, from 16:00 to 00:00 CET(14:00–22:00 UTC). This change is aimed at improving transfer processing speed. What this means for Monitor users: 1. Your historical checks and new Solana transfers will remain fully available. 2. Updates (rechecks) of some historical transfers may be unavailable for up to 8 hours. 3. To build paths from the source or destination of funds in a transfer, you will need to update the transfer first. This update will be free of charge. Full details are available in the scheduled maintenance notice on this page. Summary (October 12–14) • October 12 (Daytime): Transactions were processed steadily throughout the day, apart from a small, short-lived uptick around 16:50 UTC. • October 12 (Late Evening): Beginning at approximately 20:45 UTC, a backlog gradually accumulated and peaked shortly after 23:00 UTC. It was then cleared within minutes, and processing returned to normal by around 23:15 UTC. Some screening results and webhook deliveries may have been delayed during this period. • October 13: Processing ran smoothly all day. Queue activity remained minimal, with only a few very brief, small fluctuations that had no effect on customers. • October 14 (So Far): Overnight and morning processing has been equally steady, with transactions handled in near real time. Key Customer Takeaways • Data Integrity: All transactions and webhook events have been safely queued and processed in order, with no data loss. • Current Impact: None. Solana is working normally, and other supported blockchains are unaffected. • Long-Term Fix: The October 20 storage optimization is designed to make Solana transfer processing faster (see Upcoming Maintenance above). We continue to keep a close watch on Solana processing and will post updates in the lead-up to the maintenance window. Affected components SOL (Degraded performance)

20. monitoring Oct 15, 2026, 07:35 AM UTC

    Status: Monitoring Current Status (October 15, 07:30 UTC) Solana processing is back to normal, and screening results and webhook deliveries are being handled at their usual pace. A backlog that built up yesterday was cleared by the evening, and the pipeline has run smoothly since. Upcoming Maintenance: Solana Data Storage Optimization On October 20, from 16:00 to 00:00 CET (14:00–22:00 UTC), we will carry out a migration that optimizes how Solana transaction data is stored, in order to speed up transfer processing. What this means for Monitor users: 1. Your historical checks and new Solana transfers will remain fully available. 2. Updates (rechecks) of some historical transfers may be unavailable for up to 8 hours. 3. To build paths from the source or destination of funds in a transfer, you will need to update the transfer first. This update will be free of charge. Please refer to the scheduled maintenance notice on this page for full details. Summary (October 12–15) • October 12: A backlog formed from around 20:45 UTC, peaked shortly after 23:00 UTC, and was cleared by about 23:15 UTC. Some delays may have occurred during this window. • October 13: Processing was stable all day, with no impact on customers. • October 14: Higher transaction volume caused a backlog from around 12:00 UTC, peaking at about 14:45 UTCand clearing by approximately 20:35 UTC. Some screening results and webhook deliveries may have been delayed during this period. • October 15: Processing has been smooth so far, with transactions handled in near real time. Key Customer Takeaways • Data Integrity: No data has been lost; all transactions and webhook events were safely queued and processed in order. • Current Impact: None. Solana is operating normally, and other supported blockchains remain unaffected. • Long-Term Fix: The October 20 storage optimization is intended to improve Solana transfer processing speed (see Upcoming Maintenance above). We continue to monitor Solana processing 24/7 and will keep this page updated ahead of the maintenance. Affected components SOL (Degraded performance)

21. monitoring Oct 16, 2026, 07:36 AM UTC

    Status: Monitoring Current Status (October 16, 07:30 UTC) Solana is running as expected this morning, and screening results and webhook deliveries arrive without delay. The only notable activity in the last 24 hours was a moderate volume increase yesterday afternoon, which the system worked through in a few hours. Upcoming Maintenance: Solana Data Storage Optimization We will be migrating Solana transaction data to an optimized storage setup on October 20, between 16:00 and 00:00 CET (14:00–22:00 UTC). Once complete, this change should make transfer processing faster. What this means for Monitor users: 1. Your historical checks and new Solana transfers will remain fully available. 2. Updates (rechecks) of some historical transfers may be unavailable for up to 8 hours. 3. To build paths from the source or destination of funds in a transfer, you will need to update the transfer first. This update will be free of charge. The scheduled maintenance notice on this page contains the complete details. Summary (October 12–16) • October 12: Late in the day, transactions began queuing at around 20:45 UTC. The queue was at its largest just after 23:00 UTC and was emptied by roughly 23:15 UTC, so some customers may have noticed delays during that window. • October 13: No issues were recorded, and transactions moved through the system normally all day. • October 14: Heavier network traffic created a backlog that lasted from about 12:00 to 20:35 UTC, with the highest point around 14:45 UTC. Screening results and webhook deliveries may have arrived later than usual during this time. • October 15: Activity picked up between roughly 13:00 and 16:40 UTC, reaching its highest point near 15:30 UTC, but the increase was absorbed without meaningful delays. • October 16: Things have been quiet so far today; a single short spike around 03:40 UTC resolved almost immediately. Key Customer Takeaways • Data Integrity: Nothing has been lost. Every transaction and webhook event was kept safely in the queue and handled in the order it arrived. • Current Impact: There is currently no impact on customers. Solana is functioning normally, and no other blockchains have been affected. • Long-Term Fix: The optimized storage being introduced on October 20 is meant to speed up Solana transfer processing (more details under Upcoming Maintenance above). Our team is watching Solana performance at all times, and we will continue posting updates as the maintenance approaches. Affected components SOL (Degraded performance)