One of our admin had the in context Help (?) turn off and missed the text underneath the assignment due date that said "this will accept late submissions and assignments will be marked as late". They have only just realised this because it isn't obvious what is late in the Grade Centre. You have to either dig into each submission in turn OR view the assignment history and work out if things are after the due date. Surely if an assignment is late the icon for "needs grading" could turn to red to indicate a "needs grade but is late". Or are there any other quick suggestions. Its amazing which bits of text this in context help actually makes disappear.