I was having the same problem of being able to connect to MacBook Pro/Mohave OS but no control with either mouse or keyboard. I had added TeamViewer and Teamviewer_Desktop to both the Security & Privacy Accessibility and Full Access sections. Still wouldn't work. I ended up doing a Teamviewer full uninstall per the below instructions (make sure you click the "also deleted configuration files" box.) Reinstalled Teamviewer version 14 and all works well now. Able to access MacBook from Windows Surface Pro with full use of mouse & keyboard.
... View more