KONTROL S3 tempo slider problem

hello, I updated to traktor pro 4.2.0 and yesterday when I connected s3 with my Mac (mba m3) I realized that the right deck slider didn't work (it gives signal to midi indicator but doesn't go up or down when I play a track. If I use tempo from the left deck then both tempo sliders move up or down in Traktor pro 4. Also I realized that if you move up or down the volume faders they change a bit the tempo in the right deck only…!!! any suggestions please??