Cardiff University incident
Copilot Chat - Issues with responses after uploading a file
Resolved after 3 days 23 hours, on June 11, 2026.
Microsoft have concluded that their remediation actions have resolved this issue, and have closed the incident. Normal service should have resumed.
Update timeline
- monitoring Jun 11, 2026, 01:22 PM UTC
We have been notified by Microsoft that they have identified an issue with responses from Microsoft 365 Copilot Chat after they upload a file. Affected users may encounter an error message stating "Oops! Something happened. Can you try again?", or may experience low-quality or inaccurate responses. Microsoft are implementing changes to their infrastructure in an attempt to remediate this issue.
- resolved Jun 15, 2026, 01:00 PM UTC
Microsoft have concluded that their remediation actions have resolved this issue, and have closed the incident. Normal service should have resumed.
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