title: bar appear next to navigation item
body: <p>A bar appear next to my navigation item, my item is an image and I don't understand why a bar appear and I found that the bar appear only in device with iOS 9,10 devices with iOS 11 works perfectly.</p>
  
  <p><a href="https://i.stack.imgur.com/Q5I4e.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Q5I4e.png" alt="enter image description here"></a></p>
  
  <p>If someone have an idea. </p>
  
  <p>Here a screenshot of main storyboard
  <a href="https://i.stack.imgur.com/IUmLe.png" rel="nofollow noreferrer">storyboard</a></p>
  
  <p>and here one with all my item
  <a href="https://i.stack.imgur.com/bHNFG.png" rel="nofollow noreferrer">item</a></p>