Recording 6 channels from Pioneer mixer

Ever since upgrade to Catalina and Audacity upgrade I’m not able to record the 6 channels from my Pioneer DJM 900. It will only allow me to record channels 1_2. I’m using loopback but that does not seem to be the problem at least I dint think so. Any help here?


What model is the mixer? How are you connecting it to your Mac? Which Mac? Which version of Audacity?

– Bill