i got an issue with my keyboard, i have to unplug / plug it while the game is open in order to use my keyboard ingame. so there is a solution to that , cause i have to do that every time i launch the game
you should write some additional information : kind of plug device, model of keyboard, any other devices which could create an issue, ...
well my system is a window 8.1 and my keyboard is a logitech g510 via usb i don't know what can of information i can add. for the story , the keyboard and the game worked perfectly fine but after a maintenance of march ( i don't know which one ) i start to get this problem