Microsoft 365 Alert – Service Degradation – Microsoft Teams – Users” files uploaded to Microsoft Teams channels may be incorrectly hosted on the users” OneDrive for Business – RESOLVED

04/11/2024 09:20:00 AM

NHSmail Reference: INC46643178

Microsoft Reference: TM917573

Issue Status: RESOLVED

Issue Description: Users’ files uploaded to Microsoft Teams channels may be incorrectly hosted on the users’ OneDrive for Business.

More info: Files are accessible, and no errors are reported. Impact is specific to files uploaded to Microsoft Teams channels during a meeting. Files uploaded after a meeting has ended are hosted on the channel’s SharePoint Online site as expected.

Final Update: 18/11/2024 10:51:00 AM – Microsoft have confirmed the deployment has completed, and impact has been remediated after a period of monitoring. Affected users will not need to take any action to experience relief, any newly uploaded files in Microsoft Teams channels during a meeting will be uploaded to the channel SharePoint site as expected.

Scope of impact: Impact is specific to some users who are served through the affected infrastructure who are uploading files to Microsoft Teams channels during meetings.

Root cause: A recent service update contained a code regression, resulting in impact.

Next steps: Microsoft are reviewing their standard service update procedures to better identify similar issues during their development and testing cycles.