I just got mine recently and am having issues.
On KK it can successfully navigate, pick plugins and change parameters using the knobs but when I actually press the keys no sound comes out.
On FL studio it is able to input notes and change the mixer knobs just fine but whenever I try to set the output to komplete kontrol a25, it keeps telling me I don't have enough memory for it despite not having anything else running and having ~20 percent memory.
Also worth noting that the scale and arp buttons don't do anything but I imagine that's just how it works.