UIImagePickerController in Storyboard: UIImagePickerControllerSourceTypePhotoLibrary displays black screen

Question

I have a storyboard where I created a UINavigationController instance and set its custom class to UIImagePickerController.

If I set imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera in prepareForSegue, everything works fine.

If I set imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary in prepareForSegue, I get a mostly black screen with an empty gray bar on top that I can't dismiss:

[future location of screenshot - I cannot post images]

I can work around this by not using the storyboard. The question I have-- can this be made to work with the storyboard? If not, why not? Why does it only work for presenting the camera?

EDIT: A colleague comments that this may be a new issue for ios7

The code below doesn't work if the segue is triggered by a storyboard

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    NSAssert([segue.destinationViewController isKindOfClass:[UIImagePickerController class]], @"Destination VC should be UIImagePickerController");

    UIImagePickerController *imagePicker = (UIImagePickerController*) segue.destinationViewController;

    imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    imagePicker.allowsEditing = YES;
    imagePicker.delegate = self;

}

Answer 1

This question is a duplicate of iOS7 Storyboard image picker not working :(

The answer there:

Initialize the controller UIImagePickerController *controller = [[segue destinationViewController] init];

...appears to work for most people, so I've recommended this be closed as duplicate of that question which has been answered for awhile.