I am such an idiot. I had no idea you can bind keys. Ever since the beginning of the game. No idea. Holy ****. I don't know how to delete this feedback post. Bohemia Interactive, everything you do is correct. <3

I have the same issue, but with me and my Xbox One/360 controller. It is when the cord sometimes pops out of my controller and disconnects. When I plug it back into the controller, it does not recognize it anymore. The only way for me to fix it, is to restart Arma 3. This happens quite often, I try not to knock the cord out of my controller (it is very loose) but it happens.

Happens in singleplayer and multiplayer.

I use windows 8.1