Keep selected inbox view
I never work in the "all mail" view in Inbox, but mostly the "unread" or "flaged". Everytime I move "in and out" of the inbox, the view is reset and I have to select the view again. Please make sure the "setting" for the view is keept.
Rebecca Niles commented
On the MAC OS, the mail setting revert to showing all mail (not just unread mail) everytime something changes. It is tedious. On the iphone that is a sticky choice. So you change it from one to the other when you want to. As opposed to every time you switch to a new window.