Comment # 14 on bug 1175312 from Giovanni Gherdovich

(In reply to Takashi Iwai from comment #13)
> Thanks for checking.  Then I have no idea what went wrong, we'll need to dig
> the PA log to see what's going on there.
> 
> Interestingly I haven't heard of any similar issue on Leap 15.2, and
> probably it's because pulseaudio package was updated on Leap 15.2 (pa 11.1
> on Leap 15.1 while pa 13.0 on Leap 15.2).
> 
> Since it works without UCM profile, maybe this will be left unfixed; Leap
> 15.1 will reach EOL in a couple of months, after all...

Nevermind then, I'll leave it as it is, I was going to upgrade to the new Leap
in any case. Deleting the UCM profile is a good-enough workaround so that I can
freely choose the time to upgrade the machine.

I'm closing as "WORKSFORME", by which I mean that the majority of
users/developers didn't encounter my problem, so I'm probably seeing some weird
corner case or uncommon/broken configuration which isn't worth to spend time
investigating.