Resolved after 1 hour 13 minutes, on September 30, 2026.
### **Dates:** Wednesday, September 30th 2026, 09:04 UTC - 10:49 UTC. ### **What happened:** Real Device Automated Tests experienced failure to start in the EU Central data center, with error rates reaching up to 25%. ### **Why it happened:** A deployment led to increased cache misses and elevated load on the underlying infrastructure. ### **How we fixed it:** Service was restored by rolling back to a previous version. ### **What we are doing to prevent it from happening again:** Alternative caching strategies are being considered to increase effectiveness of the cache.
Update timeline
- investigating Sep 30, 2026, 10:04 AM UTC
We are currently seeing elevated error rates for real device tests in EU-Central-1 data center. We are investigating.
- resolved Sep 30, 2026, 11:18 AM UTC
Real Device test error rates have returned to normal in the EU-Central-1 data center. All services are fully operational.
- postmortem Oct 14, 2026, 05:12 PM UTC
### **Dates:** Wednesday, September 30th 2026, 09:04 UTC - 10:49 UTC. ### **What happened:** Real Device Automated Tests experienced failure to start in the EU Central data center, with error rates reaching up to 25%. ### **Why it happened:** A deployment led to increased cache misses and elevated load on the underlying infrastructure. ### **How we fixed it:** Service was restored by rolling back to a previous version. ### **What we are doing to prevent it from happening again:** Alternative caching strategies are being considered to increase effectiveness of the cache.
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