Additional features, settings, or issues not covered by specific Microsoft Teams categories
Update 2: We have now found out this workaround:
- Teams Userprofile Install (non .msi)
- Delete regedit key "HKEY_LOCAL_MACHINE \ SOFTWARE \ Citrix \ PortICA", if available
- Delete or rename User folder "% LocalAppData% \ Microsoft \ Teams"
- Login in Teams
--> breakout room function is available.
We hope that Microsoft will find the error in the .msi installation and eliminate it soon. I hope it helps you ...