Pressing "apply" when in the options window gave me this report.
winswitch 0.12.6-1, xpra 0.0.7.30+dfsg-1.
last text output.
Reproduceable (for me) by advanced options=yes, start local server=no, connect automatically=no, apply.
GDB backtrace attached.
gdb backtrace
Moved to the winswitch bug tracker: ticket 167
Can you please add details to this winswitch ticket as I am unable to reproduce this problem here... (distro, version, etc would help)
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/39