Some elements are not visible in backend

Please start to look on this, it is maybe related but I can't find the possible CSS error:
https://premium.wpmudev.org/forums/topic/when-there-is-more-than-6-subpages-in-a-unit-we-cant-edit-it

But the case here is that in CoursePress Pro subsite:
https://xpand.growdly.org/wp-admin/admin.php?page=course_details&tab=units&course_id=285&unit_id=289&action=edit (first modul) there is 3 elements, see screenshot:
http://screencast.com/t/c1tTWmxVK0
But if I view the site live there are 4 elements. See:
http://xpand.growdly.org/kurs/neste-steg-kurs-for-trenere/moduler/1-introduksjon/page/1#unit-page-1
and the headline of the last is not visible... see screenshot: http://screencast.com/t/25jmmC2EUE