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GitLab: Duo Workflow and AI Gateway intermittent errors

Affected components: GitLab DuoWebsite

Timeline of updates

1. investigating2026-03-12 15:34 UTC

   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.

2. investigating2026-03-12 15:40 UTC

   The cause for the intermittent errors is still under investigation.

3. identified2026-03-12 16:26 UTC

   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

4. identified2026-03-12 16:52 UTC

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

5. identified2026-03-12 17:48 UTC

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

6. resolved2026-03-12 19:22 UTC

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

Rewindex changes for this incident

• Major incident: Duo Workflow and AI Gateway intermittent errors 2026-03-12 15:34 UTC

Impact, status and times are the vendor’s own, as last archived. View on status.gitlab.com (opens in new tab). GitLab profile · Recent GitLab incidents · Markdown · JSON