I'm using the quick grading technique to give grades and feedback to a large class. If the student's work is not satisfactory, they do not get the points, but always get feedback on how to improve their text and to re-submit it. I always sort the submitted assignments according to the column "Last modified (submission)", so that I can always see the latest submissions and make sure everyone's work has been reviewed. However, on the front screen of the assignment, I always see that there are some assignments that "need grading". I cannot see which ones they are. I've gone through every assignment and everyone has feedback and/or a grade. I guess that there are some re-submissions that I haven't re-assessed, but surely they would appear at the top of the page after sorting on "Last modified (submission)".
What am I missing here?