I have a desktop mixer in use so I can mix voice, system sounds and music/game sound from various sources or second computer. That mixer feeds my two headphone amps.
Hop into a discord channel and hear nothing. Music is playing, but I can’t hear anyone. As there are green circles, it is obviously not a problem with my internet.
After checking the obvious in windows and discord settings, I reboot. Just because turning off and on again more often than not fixes wierd issues. No luck.
Instead of changing audio device, I just route voice chat on top of primary out! Workarround for the night.
Next day I get trouble shooting. Make sure plugs are in all the way, double checking settings, self-doubt and “this can’t be broken”-thoughts, two hours later…
Turns out, when you plug a cable in on side A and side B, make sure it is the same cable, not two different pairs of loose ends!
Moral of the story: Buy cables from different brands, label them or just plug in everything all the time.