title: dismissViewControllerAnimated: not animating
body: <p>I'm working with <a href="https://github.com/samvermette/SVWebViewController" rel="nofollow">SVWebViewController</a>. When I present the view controller here</p>
  
  <pre><code>SVModalWebViewController *webViewController = [[SVModalWebViewController alloc] initWithAddress:address];
  webViewController.webDelegate = self;
  
  [self presentViewController:webViewController animated:YES completion:nil];
  </code></pre>
  
  <p>The view controller slides up from the bottom, as expected. However, when the view controller is dismissed, calling</p>
  
  <pre><code>[self dismissViewControllerAnimated:YES completion:nil];
  </code></pre>
  
  <p>The view controller simply disappears. No slide animation down. Any thoughts?</p>
  
  <p><strong>EDIT</strong>
  It turns out a lot of presentation animations aren't displaying correctly in the application. Some pushes on the navigation controller aren't sliding in or sliding out (but some are). They just appear.</p>