I’m running this version on a Mac Mini M1 and can not get sound. Core audio it set for Anthem MRX receiver, I get sound for everything else, Plex, ITunes and Safari. The only program where sound doesn’t work is JRiver, no DSP added although I’ve tried. I replaced my old 2014 Mac mini with this one, I never had an issue with that setup.
I get this message when I try to play anything, this was for an MP3 320 bit rate but flat files get the same result, see pictures. Connection is via HDMI through Anthem MRX 710.