ok, I'm a dumbass. outputs on the 824 are grouped mix 1,2,3,4. mix 1 being outputs 1 and 2. so mix 3 is my Cue mix. I had mix 1 routed to 5/6, should have been mix 3. This is done from the 824 GUI, not from within Cubase. I was messing with it trying to set up another set of PA speakers and...