I notice that when I grade something, the item disappears off my to-do list without my having to do anything. However, student to-do lists are not clearing once an assignment has been completed or once an announcement has been viewed.
The question is "What are we doing wrong?" or "How do we make sure the to-do list clears?"
Operating systems of the students: macbook iOS (current) chrome/safari/firefox and iPad (current) - safari AND the app.