I’ve updated Atom.io editor on MacBook Pro from 1.52 to 1.54 earlier today. Strange thing is that after the update Atom got stuck when starting up — only menu is shown and can’t open any docs.
By my experience on Linux, when something doesn’t work I run in in a terminal and see what error message it would say. So I try the same on OS X, which is a distant relative to Linux but a relative nonetheless. I started Atom in a terminal by entering:
To my surprise Atom started successfully without doing anything else. Also later it still worked well when opened from GUI. I couldn’t explain it, but it does prove to be a fix.