A course creator created a course, put some stuff on there and suddenly next time he logs on the "turn editing on" button has gone. I can't see anything in the settings and he can edit every other parallell course under the parent category.
Even deleting the course in question and creating a new one in its place doesn't work - he can't edit this either.
The same goes for other course creators who should have access to this one course.
What's going on?