This is driving me nuts.
I pressed something wrong, and suddenly my keyboard is doing shortcuts I don’t want. The numbers / special characters above the letters are doing Function shortcuts. For example, my 1 and 2 keys are doing brightness down and up.
Keyboard is model A1243 wired to a 2013 iMac w/ OS Catalina.
It happened after I wiped my keyboard, pressing a bunch of keys randomly. I’ve tried to turn of num lock, change shortcuts, literally nothing is working.
I can’t even use “shift” + 9 to do a parenthesis. When I do it types “5”
Unplugging and plugging back in did not affect the problem.