I just received a cs18ai,rml32ai, and rm16ai. I'm trying to cascade these over AVB using the Motu switch but with everything plugged in properly and all firmware updates complete I only see the rml32ai in my dropdown box for mixer control. I do see both mixers in UC surface and I can cascade them there but I never see both on cs18ai although the Cs18ai seems to be controlling both, Am I doing something wrong? Any help would be appreciated!