MC4000 No booth or aux audio

Hi everyone,

So I’ve just purchased the Denon MC4000 to keep me occupied during this isolation period.

I’ve run into an issue I seem to be unable to fix. I’m probably making the most Noob error ever but…

I am unable to route any sound through my aux output in Traktor. My current settings are:

Output Monitor: Back Left and Back Right Output Master: Front Left and Front right Output record: Not connected

I am using the traktor pro 3 tsi from this site (I am using Traktor pro 2 but the Traktor pro 3 mapping works almost perfectly) but I feel like I’m making a noob error that is easily fixable

Please help this noobiest of noobs to find a solution