Resume Prompt Missing After Quiz Completion in Storyline 360 Module

What do you have set for the trigger to mark the course complete in your publishing settings? Perhaps you have the completion of the quiz as the trigger to mark the course complete and therefore it starts you back at the beginning after you complete the quiz. You might try changing the trigger to mark the course complete as an "Exit" button you put on the last slide. Perhaps then you will not restart the course until you click the Exit button.

If this solves the problem for you, please mark it as solved. Otherwise, feel free to ask a follow-up question.