UINavigationController pushViewController pauses/freezes midway through

Question

I am pushing a view controller via:

[self.navigationController pushViewController:[[UIViewController alloc] init] animated:YES];

But the a

Answer 1

While setting the background color as suggested by VinceBurn solved the pausing, it made the entire animation white, fading in the actual content only when the animation finished.

For me the problem was solved by making sure the content was correctly sized in -viewDidLoad.