I have troubles to make the vB-Quiz-Setting in UCP for to show. There are no settings, only a big empty part. Additional, the theme have errors and the navbar is gone away!
I'm sorry about that. I don't know how it happened but a file got switched out in version 1.2.3 and no one noticed it.
If you upload the attached file to dbtech/vbquiz/actions it should fix the problem.