Coursepress Pro 2 upgrade - course issues appeared

Hi. This site has been using Coursepress over the last year successfully. The courses are free, but by invitation-only (used for training purposes). One course was active when the CoursePress 2 upgrade was done. All courses still appeared, but students in this course could no longer access most of the content. It simply would not appear for them (white screen), even though all the content still appears when accessed by an instructor from the Dashboard. They can login, and can see the units in outline. But clicking on a unit no longer shows the information. Ideas?

I have turned on support access for the site in the Dashboard. The "course" that needs attention is "Discernment Cohort 2016: Fall".

David Cassady