Microsoft 365 Alert – Service Degradation – Microsoft Teams – Users may be unable to utilize spell check in Microsoft Teams desktop client – RESOLVED

Announcements Arpan Das

16/03/2026 08:32:00 AM

NHSmail Reference: INC46774888

Microsoft Reference: TM1253477

Issue Status: RESOLVED

Issue Description: Users may be unable to utilize spell check in Microsoft Teams desktop client.

More info: Users on the latest app version 1449/1.0.94.2025460012 for the IP Phone Android Microsoft Teams client are affected by this issue.

As a way to avoid impact, users can utilize the following steps:
1. Navigate to “calls” app.
2. Navigate to “Recents” tab.
3. Tap on the “i” button (info button) on the call history list item of the call queue call.
4. Tap on “View Profile” on the bottom sheet dialog.
5. Tap on the call icon in the new screen.

Final Update: 18/03/2026 09:17:00 AM –Microsoft has reverted the offending code change and confirmed with affected users that impact is remediated after they restarted their Microsoft Teams desktop client. This confirms that the offending change intended for general service optimizations contained a code issue that resulted in impact.

Scope of impact: This issue may affect some users utilizing the Microsoft Teams desktop client on Windows devices. This information may be updated as our investigation continues.

Next Steps: Microsoft are reviewing their code update validation process to detect and prevent similar issues before they cause future impact.