Parents have been complaining about the new calendar update.
"Something has happened to the calendar in the update. You can no longer tell what's due on what date and some lessons that have been completed are not showing up as not completed. Also some tasks are showing up out of order, e.g. quiz listed before lesson."
I have a screenshot of a calendar listing a quiz before the related lesson and showing that the lesson was not completed even though it obviously was b/c the student took the quiz.