Similar issue for me. Have xbox series x connected to lg cx and cx connected via e-arc to tsr-700 receiver and 5.1.2 system. Even booting up the console the audio cuts in and out/ stutters! Tried watching some uhd blu rays and same issue. It comes and goes, not constant, but very frustrating More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.