Students/submitter experience an exception when previewing submission that an instructor already entered a grade in.
1) Create an assignment as instructor (w/ points/ P/F - any type but non-electronic submission)
2) enter in grade for student that has not completed the assignment. Make sure you click return to student
3) Log in as student, access assignment, enter in content.
4) Click preview - the preview pane brings up an exception (plz see attachment )
I don't believe that this type of activity will surface much so I've left the priority at Major. Please bump it up if you feel differently