I want to give one assignment that has limited (1) attempts for most of my students, but not all.  I had a student submit the wrong file and I want that one student to have another attempt so that she can turn in the right file.  An admin deleted her first submission, but she still can not turn in the right one.  I have tried the feedback---> reassign feature and that doesn't work as the reassign button won't light up.  Any ideas?