Escape is the only Keyboard button working in-game.

Title really says it all. I'm at a loss, it's working fine in any other program and I can type up this issue no problem. I just don't get it. I've installed nothing new and was playing a good portion of the day yesterday with no issues whatsoever... Please help, thank you.

There was a 6mb small patch today when the client loaded, I don't know if that has anything to do with it, no patch notes or hotfix notes followed, just a little ninja patch. I don't know if that's the culprit or not. Perhaps fixing something and breaking something else.