Some users may be unable to tag other users within Microsoft Teams

Title: Some users may be unable to tag other users within Microsoft Teams
User impact: Users may be unable to tag other users within Microsoft Teams.
Current status: We’re reviewing diagnostic data to determine the root cause of impact.
Scope of impact: Impact is specific to some users hosted through the affected infrastructure.
Next update by: Friday, October 20, 2023 at 10:00 AM UTC