Comment # 12 on bug 956068 from Raymond Wooninck

As expected I guess, this xsession-errors file doesn't deliver any indication
of the reported problem. 

It would have been great if we could have gotten the .xsession-errors file for
those users where login is no longer possible. As I understood from your
message, you have reinstalled Leap 42.1 with just a single desktop and no
longer face the issue. 

Is this correct ?  If so, then there is little we can do until someone else has
the same issue and is capable of providing the error files for us.