Originally Posted by corporate-wage-slave

I am not sure there is anything wrong here. If you are upgraded then unless you use the App then you only get visibility of that at the airport. If you move within a cabin but don't print your boarding pass then MMB initially says the previous seat, but as soon as you do print your boarding pass your boarding pass and MMB would correctly show the right seat. Since FLY there is (correctly) a message that your passport needs to be scanned if departing or arriving to/from the USA (it won't necessarly appear on other flights), it doesn't impinge the check-in process. And "in progress" means you haven't printed your boarding pass, which ties in with airport collection.