I have sonos beam connected to sonos amp (rear ceiling speakers) for living room. Both are ethernet connected. I then have a 4 port hdmi switcher in between tv and nvidia shield/xbox/switch.  Every now and then Ill get some glitch where have to go into LG oled to turn on and off a bunch of hdmi settings. Today randomly we started getting constant stuttering. Of course switching to tv sound fixed issue. Tried removing 4 port switch and still have issue. Was working fine before. Builder put in permanent hdmi/ethernet behind fireplace so Im pretty screwed with swapping hdmi cable if it went bad. I guess I need to connect directly to tv to see if cable issue. I just dont know why all of a sudden we got this issue. 
Diagnostic info 2131050412