Recording user's preferences of mate-volume-control?

[christophe-lohr]

Hello,
May I ask how mate-volume-control is supposed to remember the user's preferences from one time to the next?
When I reopen my Mate session, I'd like to recover the mate-volume-control settings in the same state as I left them the last time I logged out.
Today, that's not the case: I get parameters in an almost random state.
I probably miss something (some package or session-component?)

So, how it is supposed to work?

(Debian packages mate-media 1.26.2-1+b3 and pipewire 1.2.5-1)

Best regards