[opensuse-factory] 12.3RC1 Yast-2nd stage dissapers, but nothing have changed

Hi, I've just installed 12.3 RC1 - it seems that installed went well through all "traps" I've used, like usefi (not secure boot), btrfs on /, sssd and so. The only one thing what have suprised me was when I've configured Kerberos, clicked on Next. Then Yast window have dissapeared, but nothing have happened. And I was unable to type on any terminal seems to be opened, so only way how to finish an installation was to reboot a laptop. Anyone saw the same issue? Regards Michal Vyskocil