Wow... I working on game on laptop and didn't encountered this problem. I'll try to make simple rebinding in next build
If you programmed from the laptop, the programm actually register both input.
If you work from a tower, depending on what you use, you have to manually bind the two corresponding input as one.
I ran into this issue a while back, a friend couldn't get a key to work while my project was fine. It's really stupid and you can't really fault anyone but the computer for it really.