Free form pick many question will not submit

I did not know you wanted to include a result slide. With a result slide followed by question, you would go straight to the result slide as soon as you submit interaction. Your customized review layer will not show at this time. On a result slide, the SL Review button will be available for you to review the answer, and yes, that's when they will see your customized review layer. If your question bank have more then one question, immediate response/feedback would not be triggered but will show one by one after you click the Review button on the Result slide.