Blacksmith incident
Job failures in EU West
Blacksmith experienced a minor incident on September 8, 2026 affecting Github → API Requests, lasting 1h 43m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 08, 2026, 03:00 PM UTC
Since approximately 12:20 UTC, some jobs in our eu-west region have been failing with the GitHub error "The self-hosted runner lost communication with the server"; other regions are unaffected. Affected jobs can be safely re-run while we continue to investigate the underlying cause.
- monitoring Sep 08, 2026, 03:31 PM UTC
Between approximately 12:20 and 15:15 UTC, some jobs in our eu-west region failed with the GitHub error "The self-hosted runner lost communication with the server"; other regions were unaffected. Job failures in eu-west returned to normal levels as of 15:15 UTC, and any affected jobs can be safely re-run while we continue to investigate the underlying cause.
- resolved Sep 08, 2026, 04:44 PM UTC
This incident is resolved. Job failures in our eu-west region returned to normal levels at 15:15 UTC and have remained there since; any jobs that failed between approximately 12:20 and 15:15 UTC with the error "The self-hosted runner lost communication with the server" can be safely re-run.