Full Screen Mode on Mac

When using a Mac and connecting to a machine (Mac or PC, doesn’t matter which) when I connect and then click on "Full Screen Mode icon at the tope of the window, my entire screen goes black. This does not seem to happen when using a Windows machine to connect to another machine. Anyone else experiencing this? Any known cause?
-Jim

Jim, did you find a solution for this issue. It seems i’m having the same problem.