UINavigationController strange pop animation
<p>I have a strange animation when I pop a ViewController on my NavigationController. Short video to illustrate: <a href="https://youtu.be/IMbIS7evLrs" rel="nofollow">https://youtu.be/IMbIS7evLrs</a></p>

<p>The view controller structure is:
UITabBarController -> UINavigationControllers -> UIViewControllers</p>

<p>I push the new VC using this line in my UIViewController:</p>

<pre><code>    [self.navigationController pushViewController:tripVC animated:YES];
</code></pre>

<p>Where <code>tripVC</code> is a newly created UIViewController.
Then the pop happens when the NavigationController Back button is clicked. I've also tried calling the pop programmatically using</p>

<pre><code>[self.navigationController popViewControllerAnimated:YES];
</code></pre>

<p>from within <code>tripVC</code> and get the same strange animation.</p>

<p>What's particularly odd is I've used this structure / approach on other apps and haven't had this problem. Am wondering if there's some strange segue code in my app / am missing some animation code?</p>