User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:48.0) Gecko/20100101
Firefox/48.0
Build Identifier: 

I upgraded my Leap 42.1 server/workstation to 42.2 Beta 2 using the DVD image,
and it worked very well - all functionality I care about worked just like
before, or better.

When 42.2 Beta 3 came out, I upgraded using "zypper dup", and then graphical
login to the GNOME desktop stopped working. The login screen does appear, as
usual, but after I enter my password, the screen just goes black, flickers a
couple of times, and then the graphical login screen reappears.

Reproducible: Always