Microsoft Teams – The application database has been wiped. this tab must be refreshed or be closed

Today when i logged into my development tenant’s teams I got the following message:

The application database has been wiped. this tab must be refreshed or be closed

Microsoft Teams - The application database has been wiped. this tab must be refreshed or be closed Microsoft Office 365, Microsoft Teams applicationdatabase wiped

This looks scary. Well I only have one button to click. After a login i got to the following:

Microsoft Teams - The application database has been wiped. this tab must be refreshed or be closed Microsoft Office 365, Microsoft Teams applicationdatabase wipedafter

I’ve not noticed anything missing but the warning given doesn’t make me comfortable.

So what caused this error message. It took me a few weeks before I reproduced the error.

The following steps will cause this error:

  • Open Microsoft Teams in your browser.
  • Open Microsoft Teams in another tab.
  • Log out of Microsoft Teams in one tab, the other tab now gives the error.

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