Strange Key Binding Behavior - Only 'alt-cmd-z' combo


I have started Atom in safe mode. I started the key binding resolver and only when I try to enter the key command for ‘checkout HEAD revision’ - [alt-cmd-z] then it will not register. Every other key combo between these keys will work as seen in the gif. What could be blocking the Z key while holding cmd and alt? I’m using the built-in keyboard on my macbook and sierra 10.12.4


It’s possible some other app is taking that key combo? Someone else ran into a similar issue and eventually used a 3rd party app to track down which app was the culprit:

I haven’t used it myself but it helped in that particular case.


Thank you! :smile: That was it! I was using app called Spectacle that was also using the alt-cmd-z shortcut.