One thing I forgot to add is the fact that this time I ran the installer with my SSHD disabled in the UEFI, so that might have affected the outcome as well. I'll report again if the issue happens when I install TW (probably in the next five months?). Note that comment #5 also had an incomplete drive entry, so that was only half of the problem. Many things were not working as intended because of the weird way I had to install Leap. For example, Yast was not saving some settings properly after rebooting, my UID did not start where it was supposed to and locale settings were broken as well (man actually complained about it). No wonder why some discourage the use of the live iso, but that was the only option I had.