My entire course structure is not showing

Hi.
My entire course structure is not showing on the sales/course page. Is there a limit to how many units display. I really need them all to display or people won't think they are getting it all. It's showing 15 units but should be showing 28. They are all live. Here's the page: https://school.inlpcenter.org/courses/online-nlp-practitioner-master-practitioner-training-certification/