I'm a Mac user (Catalina v10.15.7) and upgraded to Parallels RAS version 18 today and my remote desktop window does not fill my screen. Instead, the window is shifted upwards a few inches so I can't see the top of the RD window and there is a black bar underneath the RD task bar at the bottom of the screen. Also, my mouse clicks lower than it points (the same height as the black bar at the bottom of the screen). This happened only after I downloaded the v.18 update. Please help! Thank you!