Free Course Not Showing Up in Store Listing

I have added a free course (iVow Free Trial) in addition to the paid course (iVow for Married Couples). When I go to the store the free course is not showing up in the listing of courses when being viewed as a regular user. (all of them show up when logged in as admin)

I tried changing the shortcode on the store page to list all courses as opposed to the most popular, however the free course is still not appearing in the listing. (It does show up on the bottom as a next page button, however I need it to appear with the paid courses)

Thanks for your help.

Wade Jackson