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2026-February-27 Service Incident
Incident
Report for Sauce Labs
Postmortem
Dates:
Friday, February 27th 2026, 16:15 UTC - 19:50 UTC
What happened:
Requests made using API client authentication would return 500 errors.
Why it happened:
An internal data structure became corrupted due to a race condition.
How we fixed it:
The affected service was restarted, and a long-term fix was applied.
What we are doing to prevent it from happening again:
Thread locking has been applied to the affected service.
Resolved
After taking remedial action, we are now seeing real device test results display in the US-West-1 data center. All services are fully operational.
Investigating
Live and automated real device test results are not being displayed on the test results page in the US-West-1 data center. We are investigating.
This incident affected: Sauce Labs Dashboard (US-West).