2 things:
- Had to set locale.gen new (helped by:)
[root tip] [How To] Troubleshooting locale errors - timeshift gui won’t start (ask for password and then nothing)
via terminal wtih “sudo timeshift-gtk” its works. But no start from plasma. But this issue was already before this update! I found this solution:
[Solved] timeshift gui on KDE Plasma - Debian User Forums
But “pkexec” is stange for me …