Experiment Data Missing for Some Experiment Iterations

Minor Impact Identified Ongoing March 18, 2026

Incident Lifecycle

Investigating Identified Identified Identified Identified

Incident Timeline

Identified
Our team continues to work on restoring data for previously affected experiment iterations.
Complete data restoration expected by tomorrow.
Mar 19, 2026 at 4:52 AM UTC
Identified
Our team continues to work on restoring data for previously affected experiment iterations.
We will provide a further update once full historical data recovery is complete.
Mar 18, 2026 at 10:37 PM UTC
Identified
We have implemented a mitigation that restores data availability for all current experiment iterations.
Affected accounts should now see up-to-date reporting and exposure data in the UI.
Our team continues to work on restoring data for previously affected experimen...
Mar 18, 2026 at 4:17 AM UTC
Identified
The issue has been identified and a fix is being implemented.
Mar 18, 2026 at 2:08 AM UTC
Investigating
We are aware of an issue affecting experiment reporting data for a subset of accounts.
Affected users may see incomplete data for some experiment iterations in the UI.
Mar 18, 2026 at 2:07 AM UTC
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