TV 14.2, linux, session freeze

Hi,

i use a TeamViewer session between two openSuse Leap 15.x boxes.
basically it works quite well, but sometimes the session freezes ( which is really annoying ).

I then have to kill the local TV client, as the application is no longer responding. A re-connect works immediately.
My current suspicion is, that I do a Ctrl-C on a remote GUI application before the local TV client freezes (the Ctrl-C arrived on the remote box - after the re-connect the Copy-Paste buffer is filled)

Does someone else have similar problems ?

My setup looks like this:
Local:
opensuse 15.1, KDE framework 5.55, Qt 5.9.7
teamviewer-suse-14.2.8352-0.x86_64

Remote:
opensuse 15.0, KDE framework 5.45, Qt 5.9.4
teamviewer-host-suse-14.2.8352-0.x86_64

br
Roland