Reply to Cracks in sound using the traktor audio 10 interface with an external mixer and X1

Hi people,

I recently bought a traktor kontrol X1 and a traktor audio 10 interface. The reason I bought these two is because my A&H xone 3D's midi signals are really fucked up ( for example: using the left jogwheel changes like 10 things in traktor pro 2: effects,tempo,filter etc.). So what i want to use is: the mixer part of the A&H xone 3D with the traktor X1. I hooked up line A and B from the xone 3D to the audio 10's outputs A and B. The problem starts when I play music through channel A and/or B, I have cracks in the sound each 5 minutes, they last like 3-5 seconds but are very annoying! Does anybody knows what this means? And knows how to fix this?

KReal