Janeator How to repeat the controller chat issue:

Go into a game using controller only. Play for a few seconds, using buttons. Press T to type a chat message (controller specific mapping doesn't work). After typing message, press enter.

When the bug happens, the screen looks like this, with a bugged out keyboard menu: http://i.imgur.com/kbOQ0ku.png

The keyboard is stuck in the text editing mode, and pressing enter does nothing, so we press start on the controller: http://i.imgur.com/o76np6P.png

Closing the controller menu does this: http://i.imgur.com/RVH1SPo.png

Now we can close the keyboard menu, and type freely: http://i.imgur.com/PkVijYA.jpg

But if we start pressing buttons on the controller, the bug appears again: http://i.imgur.com/oHzgXSW.png