by Kal Jordan.
Andrew - you don't usually have to go to such lengths to solve that problem. For "This assignment is not accepting submissions" in 2.2, the problem can usually be solved by:
1) going to the main grader report
2) turn editing on
3) find student in list
4) find problem assignment
5) click on *edit grade* cog icon
6) uncheck the *overidden* box
7) save changes
hope this helps