This seems to be related to, or even a duplicate to:
https://bugs.launchpad.net/ubuntu/+source/paprefs/+bug/1871899?comments=all
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https://bugs.launchpad.net/bugs/1873063
Title:
paprefs
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: paprefs (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1873063
Title: