I'm getting a weird visual bug in Linux Mint 22.1 XFCE. Whenever I turn down the volume using the shortcut key (Fn + F9) and it reaches zero, the down - right volume icon still shows as if it had some volume (see pic realated) instead of the crossed speaker that represents silence.

What are some workarounds for this? I'm guessing is a XFCE bug and somehow it does not register "0% volume" as "muteness" or something