Pioneer XDJ-XZ Send/Receive outputs not working as expected

When performing with my XDJ-XZ I am both playing music and talking on the microphone but I'd like the ability to record music-only mixes. I have found a way to do this via third party software on the mac and using the send/receive outputs of the XZ:

https://www.youtube.com/watch?v=NhV4qXKCxsw

My problem is that it appears only channel 1 on the XZ sends a signal out through the send/receive of the XZ. Channels 2,3 & 4 do not. My expectation would be that all 4 channels would send signal out. Can someone please confirm this? 

If there is another way to achieve what i'm trying to accomplish (music only recordings) from the XZ I would love to hear them, thanks!