Issues with duplicating a course in CoursePress Pro

I have a course with 10 Units and two of the units have mandatory questions contained in the pages.

When I duplicate the course it appears that the number of mandatory elements doubles. However for the duplicated course there are still the same number of mandatory questions.

To give an example, when I view the Units page I see for unit 2 (titled Module 1 - Understanding Your Relationships) it states 8 of 16 mandatory elements completed - but there are only 8 mandatory questions in this unit.

Is there something I need to do when duplicating a course to stop this from happening?