I have a global sounds problem that coming from Kontakt player 8 . After a while of playing the sound is transposed to a halftone key ? If I started to play on C major , I find the sound transposed to B Major after 2 minutes of playing ??
The pitchbend of my komplete kontrol mk2 is self lowered halftone while playing on the keyboard
Could you explain exactly what you mean by this? What actually happens to the pitchbend wheel? Does it return to zero when you release it? Unwanted pitchbend messages could certainly account for your problems. If it doesn't happen with some pianos, maybe it's because those piano libraries aren't programmed to respond to pitchbend.