Working States
Fresh Launch (no saved auth) -> Auth View
Fresh Launch (saved auth) -> Nav/Popular Photos View
.... Nav/Popular Photos View -> Logout -> Auth View
Not Working State
.... Auth View -> Nav/Popular Photos View
Working States
Fresh Launch (no saved auth) -> Auth View
Fresh Launch (saved auth) -> Nav/Popular Photos View
.... Nav/Popular Photos View -> Logout -> Auth View
Not Working State
.... Auth View -> Nav/Popular Photos View