I am using the Test Question in my course. I allow the all feedback popup options in each questions and also allow from the Publish setting in " Post-Test  "option but when I preview this course at that time the correct/incorrect feedback popup are not appear. 
I tried all ways to show / allow the Correct / Incorrect  feedback popup but not working in the course. 
Please give me the solution for this.
When I Preview for a single question page that time Correct / Incorrect  feedback popup is d...