Students have submitted assignments that need grading and they are not showing up in my "To Do" list. They are not showing up in my dashboard view or within the individual course shell. I'm only receiving this "needs  grading" alert for one section, and I can't see any apparent differences in settings with the sections that are not showing up in my "To Do" list. 

The assignments in question are quizzes (so far, the only assignment they have submitted). The quiz has questions that are multiple-choice and essay questions. The essay questions still need grading. They have a point value, so Canvas should not think the questions don't need grading.

Suggestions?