When using Kontrol in MIDI 2.0 with Logic Pro X, the mixer mapping doesn't work right. If you want to bring the fader down using the Kontrol knob, it'll go up in the logic mixer and stay up, no matter how you move the knob on the Kontrol S 61 MK3. I also gave it a go in Pro Tools and Ableton, and it worked just fine. It looks like Logic Pro X is having the problem.