Microsoft 365 Alert – Service Degradation – Microsoft Teams – Some users may be unable to move channels into folders, such as favorites, or sections within Microsoft Teams – NEW

16/04/2026 8:45:00 AM

NHSmail Reference: INC46800886

Microsoft Reference: TM1281561

Issue Status: OPEN

Issue Description: Users may be unable to move channels into folders, such as favorites, or sections within Microsoft Teams.

More info: Affected users may see channels become hidden when attempting to move them into folders or sections.

Current Update: 16/04/2026 8:54:00 AM– Microsoft has received reports that impact previously communicated under TM1275443 persists. They have identified a secondary fix is needed to remediate impact for the remaining affected users. They have validated and are monitoring the progression of this fix which they anticipate will be fully deployed and the impact remediated by their next scheduled update.

Scope of impact: Some users attempting to move channels into folders or sections within Microsoft Teams may be impacted. This section may be updated as our investigation progresses.

Root cause: A recent code change introduced a race condition that occurs when users attempt to move channels into folders or sections, resulting in impact.

Next update by: Monday, April 20, 2026, at 11:00 PM UTC