Overnight, my Sonos ARC stopped working properly with my LG Oled CX. I tried changing the HDMI cable, reset the TV and unplugged all other devices.
When the audio output is set to CEC with eARC enabled on the tv, audio output works. When eARC is disabled, audio output does not work.
CEC volume control does not work anymore, and the Sonos app says ‘ARC Mode not connected’ when doing a tv setup. Already tried setting up universal control again to no avail.
This issue seemingly happened overnight, probably due to a software update?
Diagnostics 1479171840