A couple of weird things are happening with a teacher's account and I need suggestions for a fix or reasons why it might be happening.
1- When the teacher deletes an assignment it disappears but when she goes back to the page it reappears
2- The teacher has renamed a course but when importing/exporting the classes all appear with the original names and therefore has trouble distinguishing between classes.
3- When trying to assign a quiz to a new group of students, it will fail to save the changes due to an error which says the "Detail (name of the quiz) is invalid"
Any ideas would be greatly appreciated.