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LaunchDarkly: Data attribution issues with Experimentation

Impact: majorStatus: resolvedStarted Resolved (4.2 h)4 updatesSource: stspg.io (opens in new tab)
Summary

LaunchDarkly reported a major Experimentation degradation starting 2026-02-12 23:30 UTC, lasting 4 h 8 min, with certain experiment iterations receiving incorrectly attributed data. The incident was resolved at 2026-02-13 03:39 UTC; LaunchDarkly confirmed results for active experiments were accurate again.

Machine-written from the archived incident (Sol). Check the timeline before relying on it.

Affected components: Experimentation (core functionality) - Experiment results analysisExperiment results analysis

Timeline of updates

  1. investigating

    We are investigating an issue where certain experiment iterations are receiving incorrectly attributed data.

  2. identified

    The team has identified the root cause and is working on a fix.

  3. identified

    We have fixed the data attribution issues where certain experiment iterations are receiving incorrectly attributed data for any new experiments that are created. We are fixing the data attribution error for active experiments.

  4. resolved

    We have fixed the data attribution issues where running experiment iterations were receiving incorrectly attributed data. This incident is now resolved and results for active experiments are now accurate.

Rewindex changes for this incident

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). LaunchDarkly profile · Recent LaunchDarkly incidents · Markdown · JSON