One Student sticks in returned assignment.

phipsiI have the same problem! I am now constantly getting one or two pieces of student work per assingment that won't return. I'm using forms. I've tried returning using the check box next to the name and then the return button. I've tried posting from the form (which shows that it already posted even though it won't return). I've tried every way to return the assignments that I can find. I've tried all these ways multiple times. I've also tried uninstalling and reinstalling the app. The individual student work remains and the assignment itself won't clear because of that. I now have several assignments stuck in my list, which is really frustrating when trying to find assignments I need. Any help would be greatly appreciated. By the way, this only happens when I use forms.