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

16/03/2026 08:32:00 AM

NHSmail Reference: INC46774888

Microsoft Reference: TM1253477

Issue Status: ONGOING

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.

Current Update: 17/03/2026 08:53:00 AM –Microsoft has identified a recent deployment intended for general service optimizations may contain a code issue that’s resulting in impact. They have reverted the suspected offending change and recommend impacted users to restart their Microsoft Teams desktop client to immediately experience relief. Alternatively, users can wait approximately 24 hours for the effects of reverting the change to automatically reflect. Additionally, they are reaching out to some users who initially reported the issue to validate that their remediation efforts were successful, which will help them confirm our root cause theory. If impact persists, they are requesting fresh logs from actively reproducing the issue so they can resume the root cause investigation.

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 update by: Wednesday, March 18, 2026, at 12:00 AM UTC