Intellistack incident
Formstack Documents Returning 404 Errors When Accessing Documents and Builder Tabs
Resolved after 56 minutes, affecting API & Document Generation, on May 20, 2026.
We are continuing to work on a fix for this issue.
Affected components
Update timeline
- investigating May 20, 2026, 01:32 PM UTC
We are currently investigating reports of users receiving 404 errors when accessing Formstack Documents through the OnlyOffice builder experience. At this time, we are seeing impact specifically related to the OnlyOffice builder. Native builder functionality, Manage Files access, and PDF uploads are currently operating as expected. Our team is actively working to identify the root cause and assess the full scope of impact. Additional updates will be provided as more information becomes available.
- identified May 20, 2026, 02:09 PM UTC
The issue has been identified and a fix is being implemented.
- identified May 20, 2026, 02:26 PM UTC
We are continuing to work on a fix for this issue.
- resolved May 20, 2026, 02:28 PM UTC
This incident has been resolved.
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