I'm having audio issues with my RPi4B with DAC2Pro, which I use as a music player only.
Often the audio works well and sounds good, but the problem is that sometimes there appears lots of noise and sometimes the sound completely disappears from Left channel, and the volume level sometimes is much lower than usual.
The same problem occurs when playing on Spotify or DLNA.
I just checked the connectors on the card and they look good to me. Couldn't see anything that seemed broken at least.
The problem was not that frequent from the beginning , but seems to be more frequent recently.
I don't know what can I do to fix this..