Some users may be unable to use spell checker in the new Microsoft Teams

Title: Some users may be unable to use spell checker in the new Microsoft Teams

User impact: Users may have been unable to use spell check in the new Microsoft Teams.

More info: As a workaround, affected users may have been able to use the following steps to clear their cache:
– Close and quit the new Microsoft Teams application
– Delete the folder: %localappdata%\packages\msteams_8wekyb3d8bbwe\LocalCache\Microsoft\MSTeams
– Start the new Microsoft Teams application

Final status: Our extended monitoring period is complete, and our service telemetry confirms that spell checker is restored for all affected users and impact is remediated.

Scope of impact: Some users attempting to use spell check in the new Microsoft Teams may have been impacted.

Start time: Wednesday, January 10, 2024, at 6:26 PM UTC

End time: Tuesday, February 20, 2024, at 5:50 PM UTC

Root cause: A recent service update, intended to improve the right click menu for spelling errors to display suggestions relevant to the currently selected language, introduced a code regression that led to impact.

Next steps:
– We’re reviewing our Microsoft Teams service update procedures pertaining to spell check functionality to prevent similar impact in future updates.

This is the final update for the event.