audio connection issue (ground problem?)

For some reason, there is a connection issue but I can't determine what causes the audio to be muted sometimes. Can somebody help me?

https://www.reddit.com/link/13et3yn/vide...

https://www.reddit.com/link/13et3yn/vide...

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0