Quiz slides sometime shows Prev/Next and not Submit

Hi Marie, 

Is the "final quiz slide" at the end of a scene? Is that where it's getting stuck as there isn't a "next" slide to go to? You mention selecting two random questions - are all the questions part of a question bank? Showing next/prev on the resume if they've already been answered does sound like the expected behavior, but proceeding beyond that final slide will be dependent on what the next slide is. 

Could you share a copy of this course so that we could take a look at your set up and offer some additional suggestions? If you'd prefer to share privately you can also send along here.