# Pipelines — Workflow Creation Errors and Missing GitHub Status Updates

- Provider: [CircleCI](https://down.guide/circleci)
- Level: confirmed
- Impact: Degraded
- lasted 0m
- started 2026-03-18 17:15 UTC
- id: DWN-4a8507c841
- Official page: https://stspg.io/n8qyfjwryytr

## Updates from CircleCI
### 2026-03-18 16:00 UTC: resolved
On March 18, 2026, customers using workflows configured with serial groups or terminal job dependencies experienced two brief periods of disruption due to a code change.
Between approximately 12:08 and 12:35 UTC, affected pipelines encountered errors when creating workflows. For pipelines created in a second window from approximately 14:23 to 14:35 UTC, GitHub status updates were not delivered for some completed jobs. Long-running workflows triggered during this window may encounter these errors after the resolution time. The underlying change was reverted in both cases.
All systems have been operating normally since 14:35 UTC.

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