GRUB _ *only* displayed after zypper dup:

Hi, I am using Tumbleweed with KDE 6 on a machine here. I decide to update the machine today by passing 'zypper dup' into Konsole. After a bit the update completed and 'zypper ps -s' said there were no core libraries updated but I proceeded to powercycle the machine. After doing this the machine is stuck at the following displayed on screen > GRUB _ Can you tell me what may have happened and the steps to try to attempt to get this repaired?