On MacOS, when the Remote Desktop session is in full screen mode, the MacOS menu remains visible and messes up the Remote Desktop guest window. The result is that the top and bottom of the screen are cut off. If you're in single monitor mode on the guest (use all monitors is unchecked), you can usually fix this by toggling full-screen mode in Remote Desktop. If you're using all monitors, there doesn't appear to be a workaround.
Here's a screenshot...
I'm running Microsoft Remote Desktop Version 10.8.3 (2098).
Thanks,
-Ben