Strange ellipsis appearing in UINavigationBar

Question

I have implemented a navigation item with a left button, a title view, and a right button. The back button is set to "hides".

On some left transitions, a blue ellipsis appears momentarily.

Any ideas as to what this is and how to get rid of it?

Answer 1

I made it go away by setting the tint colour to transparent:

self.navigationBar.tintColor = [UIColor clearColor];