Navigation bar turns solid black during push to new view controller

Question

I have a UITableViewController embedded in a UINavigationController. Tapping a button pushes another view controller which has the navigation bar hidden. The issue is while the animation occurs, the navigation bar for the previous view turns a solid black.

Here's the best shot I could get. (The navigation bar is white by default)

http://imgur.com/fxU7VrS

Answer 1

Fixed by using

[self.navigationController setNavigationBarHidden:YES animated:YES];

instead of

 self.navigationController.navigationBar.hidden = YES;