Some time in the last few days, it seems I can no longer user ‘command-z’ or control-z on a mac laptop to undo an action. I looked online and found recommendations to go to help → keyboard shortcuts → Layout and make sure it’s set to US Qwerty.
It is already set to this. And when I go through the other optioons within that help section, I see no option for ‘undo’ - I’d expect to see it under ‘Edit’, but only see, copy, cut, paste, and other functions