xpra hangs on connect from windows

[observer]

Xpra hangs frequently when opening a conection from windows, a clipboard icon is shown in the task bar and the tooltip says pending clipboard operation or something like that.
I think this happens when you move the xpra session from and to windows more than once (linux -> windows -> linux -> windows again and hangs)
Im running xpra with this command:

xpra --no-microphone --no-speaker --no-pulseaudio start :100 --start-child=mySession.sh

where mySession.sh is:

exec env LANG=es_MX.utf8 GTK_THEME='Win 10' mate-session

Trying to reconnect the client doesn't work it seems the server is what hangs but I know the programs are running because I hear the sound (I have default-server in .pulse/client.conf running sound without xpra)

[observer]

Output of the xpra bug tool

[Antoine Martin]

See wiki/Clipboard and the wiki/FAQ.

Does it work OK if you disable the clipboard?
Do you have a clipboard manager running? synergy? Or maybe a virtual machine?

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FYI: in version 1.0, you can do

xpra start --start=mate-session --start-env="LANG=es_MX.utf8" --start-env="GTK_THEME=Win 10"

[Antoine Martin]

See also #1288

[Antoine Martin]

Not heard back, closing. Feel free to re-open if you have more information.