Teamviewer Full Screen Bug

Dunn

I am using Free Trial of Teamviewer in Win 10 Pro. I have dual monitors on host computer. When I put Teamviewer remote window at full screen on monitor 1, it will eventually mirror itself onto monitor 2. Once this happens, the mouse cursor only effects the remote computer, not the host. I have found no way to regain control of host computer other than reboot. Am I doing something wrong? Does paid version have this dysfunction? Please advise.