Good evening @Chris_Hofer,
What Coral is referring to is the most recent Canvas mobile app update that was pushed. Whether intentionally (misguided if so) or unintentionally, it changes to the way that the mobile/tablet To Do List tab operates, which has been received fairly negatively. Apple App Store shows 50+ one-star/negative reviews just since Friday. It used to provide a weekly/biweekly (however the learning institution had their modules/groupings set up) list of items due, specifically assignments, quizzes, tests, etc, within that time period. It would only list those items that are specifically due during that time period, and would automatically remove them from that list as students submitted those assignments, and in cases such as quizzes or exams where no deliverable is to be submitted, the item could be manually removed from the list. It would also provide persisting and dynamic push notifications through the app to our mobile devices indicating how many items we had left in our To Do List to complete.
Since the update, it has completely reworked how the To Do List operates, listing ALL items that need to be submitted for the rest of the semester/school term, as well as events and random items from groups or other things our institution added us to, even if it does not pertain to us. This is compounded by the fact that we cannot manually remove any items from the To Do List anymore. So it has essentially turned a highly valued and relied on tracking tool into a giant list of all deliverables, assessments, events, etc for the entirety of the school term, made worse by the fact that it no longer provides any push notification indicator of what is due during that set cycle.
Many institutions using Canvas, such as Georgia Tech where I am a grad student at, don't release a lot of their assignments/projects to be available to begin working on until the specific weekly/biweekly period they are due in. So those items are persisting in this list with no way to view as they are locked, and it causes a lot of frustration when that tool was used as a very helpful reminder/tracking tool on what is specifically due when.