Not a common problem, if you can map the jogwheel a deck you can map it to any deck. It’s just a case of you checking that you’ve duplicated the deck a controls to deck c, and your device targets and modifiers are all present and correct.
Strange thing is, all settings are fine. I can map the wheel to deck c it just doesn’t do anything when I move it. I even tried mapping the cross fader to the scratch function for deck c and that wouldn’t do anything either!
It seems to be more a problem with Traktor than the controller