Issue with Experiment Results in case of Flag Variation edits

Incident Report for LaunchDarkly

Resolved

We have validated a fix to resolve all remaining experiments with inaccurate sample ratio mismatches (SRMs) or empty experiment results. The vast majority of experiments and experimentation customers were not impacted.

Posted Apr 30, 2026 - 17:09 PDT

Monitoring

We've released a fix to prevent this issue in new experiments and iterations. We're working to resolve this issue for experiment data recently processed.

Posted Apr 29, 2026 - 17:04 PDT

Identified

We've identified the issue and are implementing a fix for this behavior.

Posted Apr 29, 2026 - 13:49 PDT

Investigating

We are aware of an issue affecting some customers that may result in sample ratio mismatches (SRMs) or empty experiment results if flag variations are edited between experiment iterations.

Posted Apr 29, 2026 - 13:19 PDT

This incident affected: Experimentation (core functionality) (Experiment results processing, Experiment results analysis).