Long shot but any help welcome. I plugged my new Beam into my LG C9 HDMI 2 port, flipped the option for EARC in TV settings, hit the button to set up my TV in the Sonos app… and immediately got the HDMI ARC not detected screen. After a lot of googling I disconnected all other inputs, power cycled the TV and Beam, played with turning eARC off and basically everything any AI Overview or forum post suggests. Anyone got anything to suggest beyond setting to fire to both devices? I naively thought this should be easy
