Title: Some users intermittently may be unable to access the Files tab in Microsoft Teams classic
User impact: Users intermittently may have been unable to access the Files tab in Microsoft Teams classic.
More info: Affected users may have seen the following error message, “There was a problem reaching this app”.
Impact was specific to the desktop client, Microsoft Teams web app worked as expected.
Final status: We’ve completed our revert and confirmed via service health telemetry that the issue was successfully remediated.
Scope of impact: Some users on the Microsoft Teams classic desktop client were intermittently impacted.
Start time: Monday, February 5, 2024, at 2:48 PM UTC
End time: Friday, February 16, 2024, at 11:22 PM UTC
Root cause: A recent deployment to improve cache in Microsoft Teams classic desktop client introduced a compatibility issue and was preventing some users from intermittently accessing the Files tab as expected.
Next update by: Saturday, February 17, 2024, at 3:00 AM UTC
Next steps:
– We’re reviewing our change testing and validation procedures to identify opportunities to improve impact detection before deployment.
This is the final update for the event.
