This bug was fixed during the alpha/beta stage of 5.0, but already returned once more later on. Now it has returned again! The problem is that when I do a change course to make the lesson part of a different course, the lesson does not end up as the last lesson, but as the one before the last lesson.
The question is: why does this error keep returning and what can you do to prevent it from returning?
Also, I would like it to be fixed (again).