Opensuse 13.1 and 13.2 hangs at end of installation

I have recently been performing new installations of 13.1 and 13.2 (on different computers) from a live KDE USB stick. In both cases I have found that the installation hangs at the message “Coping log files …” . I had to resort to a terminal and “kill” the Yast2 process to get the Install to abort. However, in both cases it appears that the installation had in fact finished because the new OS worked on removing the USB stick and rebooting. So I am just curious as to why this might have happened. I waited for over an hour for the hang to clear by itself but it didn’t. Should I have waited longer?