Comment 72 for bug 1866194

I also face this issue and have opened a bug here: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1906243 (Please click "I'm facing this bug too" if you are facing this issue).

This exact same bug has been marked as a duplicate here: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1874513 (The one @nivg mentioned). This was marked as a duplicate to the bug in this page, but I don't think these bugs are the same.