to reproduce
1) play sound over dock
2) unplug the dock
3) take your mac for a walk, play sound, do whatever
4) replug the dock
5) sound source switches back to the dock (automatically)
6) play sound -> NO SOUND
7) restart application that plays sound (eg spotify, browser, teams, mail, etc)
8) back to normal
at step 6 you can switch output to mac speakers and the sound is playing, switch back to the dock => still no sound
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