Teams - Stuck on "Loading Microsoft Teams..."

[CHiLL]

The app version of Teams on my desktop is stuck permanently stuck on "Loading Microsoft Teams..." splash screen and won't progress further, even if left for days. I can't figure out how to resolve it. I have been attempting to troubleshoot other Teams issues and it's meant I've installed, uninstalled and re-installed Teams many times on this machine. I suspect that this is the root cause of the issue, as the same thing has happened on another machine (a remote staff laptop) that I've repeatedly installed/uninstalled Teams on.

 

Things I've tried:

- Completely uninstall & reboot

- Uninstall and clear "%LocalAppData\Microsoft\Teams"

- Clear profile from machine entirely (DelProf2) and reboot

- Cleared temp files via System Cleanup

- Removed all stored credentials from Credentials Manager

- Cleared Teams folders from %ProgramData%

- Removed Office 2019 Professional Plus entirely from the machine and reinstalled

 

None of the above worked. Anyone encountered this?

[CHiLL]

Literally a few minutes after posting this, I found a Microsoft Community post by Mzolo (bottom of page 2) post where someone suggested running Teams in Windows 7 compatibility mode. It worked!

 

So if anyone comes across this:

1) Fully exit Teams

2) Change the Teams shortcut to run in Windows 7 compatibility mode

3) Load Teams

4) Sign in when prompted

5) Teams will load as normal

6) Remove compatibility mode from the shortcut (and Teams will continue to work)

 

It seems that it has something to do with Teams losing authentication and wanting you to re-authenticate. Because Teams, it's borked and doesn't prompt you with the login screen and just stays on the Loading... screen. Compatibility mode appears to kick it back into life.

Edited January 28, 2021 by CHiLL