I'm having an odd issue with my traktor S4 and software traktor pro 3. It doesnt matter what i do but the deck right side is always auto switching to Deck D. Even when I clicked to switch to B, it auto switches to Deck D. Im not sure if this is a HW problem but this used to work fine and suddenly started getting this glitch. This is not happening on the left side, thought. My workaround is to tape the Deck button and that seems to be working but not something that i want to risk on a live gig.