[winswitch] xpra 4.1 repeated warning

[Anthony Stone]

Antoine,

I have encountered a tiresome niggle in the otherwise excellent xpra.

I have v.4.1 of xpra installed on both server and client, both running 
under Ubuntu 18.04. When I started a new session, the first with the new 
version, I got the following warning message repeated several times a 
second:
2021-03-03 20:33:17,987 audio playback Warning: object of type 
`GstPulseSink' does not have property `processing-deadline'

I can stop this by switching off the speaker in the system tray menu, 
and I don't use audio anyway, but it's a nuisance. I have tried setting
--speaker=disabled
in the config file, but xpra complains that it's an invalid option.

I find that I can avoid the problem by including "--speaker=disabled" in 
the "xpra start" command, but I suspect that it shouldn't be necessary.

Is this a bug or a feature?

Regards,
Anthony