# GitLab: Major incident: Duo Workflow and AI Gateway intermittent errors

**Summary:** _summary pending_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-03-12 15:34 UTC · Detected: 2026-10-18 05:08 UTC
- [Source: https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/69b2dd14600c4c057b9feffe](https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/69b2dd14600c4c057b9feffe)
- [Company: GitLab](https://rewindex.com/company/gitlab.md)
- Versions: before (none: first archived) → after incident\_version:188/69b2dd14600c4c057b9feffe@c7dbff352bb6
- Change 1 of 1 for this incident

Incident page (full timeline): [Duo Workflow and AI Gateway intermittent errors](https://rewindex.com/company/gitlab/incidents/69b2dd14600c4c057b9feffe.md)
## What changed

**1. Added: Title**

```diff
+ Duo Workflow and AI Gateway intermittent errors
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-03-12 15:34 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-03-12 19:22 UTC
```

**6. Added: Affected components**

```diff
+ GitLab Duo, Website
```

**7. Added: Update** (investigating) · 2026-03-12 15:34 UTC

```diff
+ We are currently investigating an issue affecting Duo Workflow and AI Gateway for requests routed through GPT models. Users may experience errors using only gpt models on DAP. Engineering is currently investigating the issue.
```

**8. Added: Update** (investigating) · 2026-03-12 15:40 UTC

```diff
+ The cause for the intermittent errors is still under investigation.
```

**9. Added: Update** (identified) · 2026-03-12 16:26 UTC

```diff
+ Our team has identified the issue as related to a recent commit. Our team is discussing next steps. Users may also experience NotImplementedError with Code Review flows. More information will be available in: https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/21529
```

**10. Added: Update** (identified) · 2026-03-12 16:52 UTC

```diff
+ Our team is currently reverting some recent changes to resolve the issue.
```

**11. Added: Update** (identified) · 2026-03-12 17:48 UTC

```diff
+ This incident is pending a deployment to resolve the issue. We'll provide an update once it is deployed.
```

**12. Added: Update** (resolved) · 2026-03-12 19:22 UTC

```diff
+ The fix has been deployed and we have not seen any more errors. This incident is now resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-03-12 15:34 UTC | Major incident: Duo Workflow and AI Gateway intermittent errors (this change) | degradation |

All GitLab changes: [timeline](https://rewindex.com/company/gitlab/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


---
Canonical: https://rewindex.com/change/id4a44496f1522e · Markdown: https://rewindex.com/change/id4a44496f1522e.md · JSON: https://rewindex.com/api/v1/changes/id4a44496f1522e · Generated 2026-10-18T11:25:20.263Z