Courses of the previous semester will automatically hidden to students in the middle of the following semester after prior notification. This is due to negotiations between VG Wort, KMK and universities regarding the use of copyrighted works. However, these courses can be made visible again, after examination by the lecturer, if it has been ensured that there is no material protected by copyright.
The following video explains how you can make your course visible again and thus make it accessible to students. (Currently just German)