I can reliably reproduce this in several programs. If I hold a letter such as
a to type
aaaaaaaaaaaaaaaa, it doesn't repeat, it just types it once. But then when I try to input text in the app after that it doesn't work. Keyboard shortcuts still work in the app, but input no longer works. In Chrome, input in the page fails but I can input in the address bar ok.
What on earth could cause this and how do I fix it?
This is on a MacBook Pro 15 inch Mid 2015, OSX 10.12.2 (Sierra).
Note how I type
h a few times individually, then hit space and hold the
h key. From that point on the keyboard completely fails to input any characters, though (as demonstrated) I can use the keyboard to copy/paste just fine. In Chrome, the keyboard is only broken in that tab (even through a refresh--the only way to get the keyboard back is to open a new tab). In text editors like PHPStorm, it's broken in all tabs and the entire app must be restarted to unbreak the keyboard.