I have been experiencing the exact same issue for a while. Here is a workaround that allows TM to start viewing sessions and to connect to an account : sudo systemctl stop teamviewerd.service
sudo systemctl start teamviewerd.service
teamviewer & I am running Teamviewer 14.1.18533 under Linux Mint Sarah. However, it does not explain why TM seems not to work properly on a "random" basis. Also, I've read at several places that some programs are known for "messing" voluntarily with users that bypass their free and non commercial agreement.
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