The project I am working with is built with Storyboards. I do not have any Xib files, nor is the a ViewController that is built through code without a StoryboardVC counterpart. There are no ViewControllers that are built entirely programmatically.
I have recently implemented the interface for the login screen as per design's request, and the design is visible in the Storyboard. When a user runs the app in iOS 8, they can login, and then sign out and still see the current login screen. However, when a user runs the app in iOS 7, they do see the designed login screen initially, but when they logout, they see the old login screen.
The old login screen no longer exists in Storyboard. Furthermore breakpoints in the login screen are only called when the user first arrives. No breakpoints are called when the user logs out again.
I am perplexed at what could be causing this, and apologize for not being able to attach screenshots.