Resolved -
This incident has been resolved. The fix has been deployed, the affected data has been cleaned up, and the platform has remained stable since. We apologise for the disruption and thank you for your patience.
Oct 25, 05:24 UTC
Monitoring -
The fix has been deployed, and the platform has been stable since then.
Summary: between about 02:45 UTC (08:15 IST) and 11:20 UTC (16:50 IST) on 23 Oct 2026, users in the US region may have experienced slow page loads, intermittent errors, and interruptions to some test runs. The cause was a defect that duplicated test data filter values when they were edited, combined with an inefficient way of loading those values. Opening an affected test case caused our application servers to run out of memory and restart.
What we changed:
Duplicate test data values are no longer created when editing filters.
Loading test cases with large data filters is now much lighter on memory.
The duplicated data has been cleaned up, and we've verified that affected test cases now open normally.
No customer data was lost. We are continuing to monitor the platform and will mark this incident resolved shortly.
Oct 25, 05:23 UTC
Identified -
We have identified the cause of the slowness and intermittent errors in the US region that began at about 02:45 UTC (08:15 IST) on 23 Oct 2026.
Opening certain test cases that contain an unusually large amount of duplicated test data caused our application servers to run out of memory and restart. While servers restarted, some requests were slow, failed, or returned errors, and some test runs may have been interrupted.
Our engineering team is working on a fix that prevents this data from being duplicated and makes loading such test cases much lighter. Until the fix is rolled out, users in the US region may see intermittent slowness or workload interruptions. If a test run fails to start or ends unexpectedly, please re-trigger it.
EU and India regions are not affected. We will share another update once the fix is deployed.
Oct 25, 05:23 UTC
Investigating -
Between 02:37 UTC (08:07 IST) and 07:46 UTC (13:16 IST) on 23 Oct 2026, customers on our US region may have experienced slow page loads, intermittent errors, and interruptions to some test runs in the Testsigma web application.
Our team identified the cause as high memory usage in the application servers, triggered by a specific type of test data processing. Services have been stable since 07:46 UTC (13:16 IST) and are currently performing normally.
Until a permanent fix is identified and rolled out, there may be intermittent slowness and possible workload interruptions in the US region. Our engineering team is actively working on the fix and monitoring the platform closely.
Possible impact:
- Slow loading or timeouts in the web application
- Intermittent errors when opening test cases or test results
- Some test plan runs or reruns may fail to start or end with an error
Recommended action: if a test plan run or rerun doesn't start or ends unexpectedly, please re-trigger it.
We apologise for the inconvenience and will post another update once the fix is rolled out.
Oct 23, 08:46 UTC
