Prefect Horizon incident

Hosted server builds are delayed

Minor Resolved View vendor source →

Prefect Horizon experienced a minor incident on April 15, 2026 affecting Horizon: Builds (Builds), lasting 11h 57m. The incident has been resolved; the full update timeline is below.

Started
Apr 15, 2026, 12:20 PM UTC
Resolved
Apr 16, 2026, 12:17 AM UTC
Duration
11h 57m
Detected by Pingoru
Apr 15, 2026, 12:20 PM UTC

Affected components

Horizon: Builds (Builds)

Update timeline

  1. investigating Apr 15, 2026, 12:20 PM UTC

    Build system is experiencing delays kicking off jobs. This impacts Hosted servers; external connectors and Remixes are unaffected. Request serving is also unaffected Engineering team is investigating

  2. resolved Apr 16, 2026, 12:17 AM UTC

    Background job system is caught up, and Hosted server builds should be triggered normally