Microsoft 365 Alert – Service Degradation – Microsoft Teams – A small number of users’ Microsoft Teams app may intermittently crash during calls or meetings on some iPad devices – ONGOING

02/07/2025 09:20:00 AM

NHSmail Reference: INC46569497

Microsoft Reference: TM1107517

Issue Status: ONGOING

Issue Description: A small number of users’ Microsoft Teams app may intermittently crash during calls or meetings on some iPad devices.

Current Update: 08/08/2025 08:24:00 AM – Microsoft have confirmed within their internal test environment that disabling the conflicting feature flag within the configuration of the feature update allows us to re-enable the feature for multi-window support in Microsoft Teams without impact reoccurring. They have initiated the re-deployment of the feature for all affected users which has currently reached 10 percent towards completion. They have monitored service health telemetry which indicates no increase in error counts for the users who’ve had the feature enabled. Their current estimations indicate the feature will be re-enabled for all affected users by their next scheduled communications update.

Scope of impact: A small number of users joining calls or meetings on iPad devices may be intermittently impacted.

Root cause: A feature update for iPad devices, which intended to enable multi-window support in Microsoft Teams for these devices, introduced an error that’s leading to impact.

Next update by: Thursday, August 21, 2025, at 10:00 PM UTC