ChimeraOS through AVR having problems

Hey all, anyone else running Chimera or HoloIso (I'm not opposed to switching) through an AVR with any success? For some reason the audio drops frequently even after a new HDMI.

Drops only occur through the AVR, tested on TVs and soundbars. Any thoughts on where to start troubleshooting would be great. Or if I should just switch off Chimera in general!