MacOS 'Command' menu is unresponsive

Recently updated for the first time in a while (maybe from 1.7.3?) to 1.9.0 and the ‘Command’ Menu no longer works. For example I can’t toggle mute or the menu etc using my mouse. ‘Retroarch’, ‘File’, "Paths’, ‘Windows’, ‘Help’ and Keyboard shortcuts all seem to work. Any ideas on a fix?