I've got a strange bug that I'm hoping isn't an OS issue. I have a split view controller and when I'm in landscape mode the back bar button items appear properly. However, when I reveal the master controller from portrait all of the bar button items are dimmed. I don't have any code that sets these back button items, but they are set using the default behavior. I've got several levels in this master controller and they all subsequently retain the dimmed behavior. Any ideas?