same here. just wanted to edit some groups and create new ones with new icons and icons that were uploaded but never used before.
Seems to kick out people with the command handling error as soon as I am using a new icon that was never used before.
One of my friends deleted his cache and it...
Just updated to the newest Version of Teaspeak to get rid of these myteamspeak errors.
After that a friend could not connect anymore. he got "Unknown value type for client_integrations!". If he removed logged off from his myteamspeak account, it worked again.
EDIT: just a few things to clarify...