DDJ-SX2 jumping sound level when using 1 fader

Hi,

I know about the issue in 1.05 with 2 faders. However this is different. This happens only on channel 1 and within Traktor. When i use Serato or connect a CDJ to the same channel there is no problem.

Fw: 1.06
Latest driver for Windows 10 installed
Traktor: 2.10.0

Any ideas?