Course Description field not saving entry

I can't get Courseware to save my course description. I get a green confirmation dialog after saving the description but no info is saved. I then get a red dialog under Courseware > Course Description that says "BuddyPress Courseware Error! Cheatin' Uh?"

Have tried several times to get this to save, and have ensured I'm a teacher, but no go. Any help much appreciated. Thanks.
