Thunderbird status bar hangs with "email.example.com: Searching folder...", Activity Manager empty
Hello everyone!
When I first start Thunderbird, the status bar goes through all accounts and is then empty. When I select an individual account under the unified inbox, the status bar stays empty. When I then switch back to the unified inbox, it goes through the accounts again, but gets stuck on the last account showing "email.example.com: Searching folder..." in the status bar indefinitely, all the while the Activity manager is empty. It also doesn't appear that any mails would be missing. If I then use Offline -> Download/Sync now..., TB goes through all accounts again and afterwards the status bar stays empty. One switch back and forth between an individual account and the unified folder and it shows "email.example.com: Searching folder..." indefinitely again.
It seems to usually get stuck on the first email account from the top, but sometimes also a seemingly random other email account.
The issue persists within Troubleshoot mode, my current version is 102.4.1.
Does anyone know what the cause of this is?