The user needs to continue to page 28 - they stop on page 27 and close out without clicking on through to the LAST slide.

I apologize for the issue that you are having with this course. Can you please relaunch the course and click on the NEXT button on the final score page and that it says page 28 of 28 at the top right of the course. Once you have done that your course should move to completion. Please let me know if you need further assistance.