# GitHub Copilot: Disruption with some GitHub services

> GitHub Copilot status incident “Disruption with some GitHub services” on 2026-04-27: impact minor (vendor’s label), 2.2 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/github-copilot/incidents/vq183jvj6vrw
Last updated: 2026-04-27T19:02:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-04-27 16:48 UTC · Resolved: 2026-04-27 19:02 UTC · Duration: 2.2 h
- Updates: 1
- [Vendor status page: https://www.githubstatus.com/incidents/vq183jvj6vrw](https://www.githubstatus.com/incidents/vq183jvj6vrw)
- [Company: GitHub Copilot](https://rewindex.com/company/github-copilot.md)

## Timeline of updates

- **resolved** 2026-04-27 19:02 UTC: On April 22, 2026 from 18:49 to 19:32 UTC , the Copilot Cloud Agent service began failing during session execution for users running the Agent HQ Codex agent. Codex agent sessions failed to start for all entry points (issue assignment, @copilot comment mentions). 0.5% of total Copilot Cloud Agent jobs were impacted (~2,000 failed jobs). Copilot and other agent sessions were unaffected. This was caused by a model resolution mismatch in Codex agent sessions, resulting in an incompatible model being used at runtime. A mitigation was deployed to select a stable default model for Codex agent sessions. We are working to harden the underlying model-resolution path so it correctly scopes to the requesting agent's supported models to prevent similar failure mode in the future.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: minor) posted by GitHub Copilot, started 2026-04-27 16:48 UTC, resolved after 2.2 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/github-copilot/incidents/vq183jvj6vrw
- Citation: GitHub Copilot, “Disruption with some GitHub services” (2026-04-27 16:48 UTC). Archived by Rewindex: https://rewindex.com/company/github-copilot/incidents/vq183jvj6vrw (CC BY 4.0).
- Markdown link: `[GitHub Copilot: Disruption with some GitHub services (2026-04-27)](https://rewindex.com/company/github-copilot/incidents/vq183jvj6vrw)`


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Canonical: https://rewindex.com/company/github-copilot/incidents/vq183jvj6vrw · Markdown: https://rewindex.com/company/github-copilot/incidents/vq183jvj6vrw.md · JSON: https://rewindex.com/api/v1/companies/github-copilot/incidents/vq183jvj6vrw · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T14:38:07.255Z