I am trying to add an existsing user to a course from the backend but the list of courses is empty and adding a user to a course is impossible.
When I go to menu 'Students->Manage Students' and try to select a user to add to a course the lost of courses is sometimes empty even though there are available corses. And when there are courses in the list and I choose a course, and click 'Save', the user is not add to the course.
This is an essential function and it is necessary for me as admin. I must have the option to add users manually if they paid by cash or wired transfer. I cannot double charge them and have no way to add them to a course now.
Please fix it ASAP.
