DJM750mk2 FX return (outputs 11/12) as input for Ableton Live

Hey All,

Does anyone have experience with using mixer output channels (USB inputs) 11/12 (the FX send) on a DJM mixer in your DAW? I've got the 750mk2 but it looks to be the same for the 900nxs2 and the like.

Normally with the S/R you can use it as an insert or as an aux input on one of the normal mixer channels, but the USB soundcard shows channels 11/12 as separate inputs for the FX send, however I can't get any audio to come thru these.

If anyone has experience with this I'd greatly appreciate some advice.

Thanks!