Small Black square rounded corners when starting audacity


Running Gentoo

When starting audacity a small black square with rounded corners appears in the middle of the screen.

Using pipewire, pipewire-pulse.
Problem occurs after changing the default.clock.allowed-rates in pipewire.conf.
changed in pipewire.conf:
from : #default.clock.allowed-rates = [ 44100 ]
to : default.clock.allowed-rates = [ 32000 44100 48000 88200 96000 176400 192000 352800 ]

after reverting and restarting pipewire ; audacity ok

I see that the Gentoo wiki has this warning about PipeWire:

As of early 2022, PipeWire is still in active development. Some things may still not be fully integrated, tested, or implemented, and there may be large changes. It can work well for some, though the experience is not guaranteed to be perfect, free of issues, or bugs.

Ok, was aware of that, will open ticket on pipewire