LG Firmware 03.21.09
diagnostics reference code 1031729708
The issue that 03.21.09 was supposed to fix is still causing sound cutting out for me. It worked today, then suddenly stopped. Works with Atmos, but not getting any other audio. Everything seemed to be working fine until I tried to match a movie trailer in the movie tab of Apple TV.
Settings on LG CX
Sound Out: HDMI Arc / HDMI Input Audio Format: Bitstream for all / Digital Sound Out: Pass Through / eARC: on / Auto Device Detection: On / Simplink (HDMI-cec): On / Auto Power Sync: Off
Apple TV audio setting
Default Sound: TV speakers / Audio Format: Auto, Atmos Available