Microsoft 365 Alert – Service Degradation – Microsoft Teams – Users were unable to share their screen or video during Microsoft Teams meetings when using VDI with Omnissa devices – RESOLVED

Announcements Arpan Das

22/11/2025 09:38:00 AM

NHSmail Reference: INC46710137

Microsoft Reference: TM1200539

Issue Status: RESOLVED

Issue Description: Users were unable to share their screen or video during Microsoft Teams meetings when using VDI with Omnissa devices.

More info: When users attempted to share their screen or video during Microsoft Teams meetings when using VDI with Omnissa devices, the participants may have only seen a blank screen.

Final Update: 22/12/2025 09:39:00 AM – Microsoft have re-enabled the correct code configuration and confirmed that impact has been resolved.

Scope of impact: Some users attempting to share their screen or video during Microsoft Teams meetings when using VDI with Omnissa devices may have been impacted.

Root cause: A recent update contained a change that set an incorrect configuration for a section of code that helps facilitate the sharing process in this scenario, which caused impact to occur.

Next Steps: Microsoft are reviewing their update procedures to better identify similar issues during our development and testing cycles.