KOMPLETE Audio 6 - AUDIO SETUP HELP !

KOMPLETE Audio 6 - AUDIO SETUP HELP !

I recently got an Audio 6 to connect to my rokit speakers while playing with traktor, but when i plug in my headphones to the sound card and mix, i cannot listen to the other channel on the headphones unless i raise the other channels fader on traktor, and when i press the headphone button on traktor nothing happens. Any one know what i’m doing wrong ?

in the preference menu/output routing you can set your monitor output,

I already set my monitor output but it didnt work..