Reply to Recording Mixes in Traktor Pro 2

Hey guys,
I'm unable to get any kind of recording done in Traktor Pro 2. I'm using just a laptop and an Audio 2 DJ. My output monitor is assigned to chans 3 & 4, while my master is set to chans 1 & 2. I've tried switching chans 1 & 2 to Record, but to no avail, the audio recorder doesn't budge.

I'm a tad confused as this is the setup I used in previous versions of Traktor Pro.

Any suggestions?