LangChain incident

Annotation run view performance degradation

Minor Resolved View vendor source →
Started
Apr 28, 2026, 02:25 PM UTC
Resolved
Apr 28, 2026, 02:25 PM UTC
Duration
—
Detected by Pingoru
Apr 28, 2026, 02:25 PM UTC

Affected components

LangSmith Application

Update timeline

  1. investigating Apr 28, 2026, 08:44 AM UTC

    Status: Investigating We're investigating an issue where the annotation queue page may load very slowly or even freeze the UI after clicking the View Run button. Affected components LangSmith Application (Degraded performance)

  2. identified Apr 28, 2026, 11:25 AM UTC

    Status: Identified The cause of the issue has been identified and the team is currently working on a fix. Affected components LangSmith Application (Degraded performance)

  3. resolved Apr 28, 2026, 02:25 PM UTC

    Status: Resolved This incident has been resolved. Annotation queues are once again fully accessible in the US LangSmith UI. Please let us know at [email protected] if you're still experiencing issues. Affected components LangSmith Application (Operational)

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