[X2Go-User] no accessible desktop found

Hi everyone, I have an issue with some of the machines I try to connect to. I set "connect to local desktop" to see other users sessions, but on some of the machines whose I try to connect (all of them has the same packets installed), I receive "no accessible desktop found", if I try instead "XFCE", I can establish a connection and have my own graphical environment.

I would like to know the possible causes for this strange behavior.

Thanks in advance.

Best Regards. G