Online Course created from Self-Paced learning "Review Attempt" functionality behavior

We have created an Online Course via My Client Groups > Learning > Self-Paced Learning. In the Online Course configuration, the learners are allowed to REVIEW their answers in their previous attempts. We believe that this is supported. By clicking Review Attempt button (see first image), they are able to see their answers in the previous attempts. But in our case, every time the learner clicks Review Attempt button, instead of being able to see his answers in previous attempts, he is just redirected to Online Course wherein he needs to take it again. Then sometimes, when the button is