I am running the 2.1 client on Windows 10 and the 1.0.6 server on RHEL6.6.
Normally, each X application has an application-specific icon displayed on the Windows 10 taskbar. If I toggle the xpra client OpenGL option on/off, or if I return from the Windows 10 lock screen, the application-specific icons are replaced by a generic xpra icon.
I get the proper icons back if I disconnect and reconnect.
Shouldn't be too hard to fix.
You can find 2.2 beta builds with this fix here: https://xpra.org/beta/windows/.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1643