title: side menu by jonkykong (library for ios swift 3) is not loading when swiped
body: <p>Im using this library <a href="https://github.com/jonkykong/SideMenu" rel="nofollow noreferrer">https://github.com/jonkykong/SideMenu</a> 
  opening issue is not helping</p>
  
  <p>When my app is first launched and I swipe from left to right to pop the side menu, i see black screen</p>
  
  <p>when I choose menu item and it has child view controller, I go to that child controller, then I go back, then doing step 1 results in messy side menu- something clearly goes wrong.</p>
  
  <p>Info: the blue background if the side menu is a UIimageView stretched all over the View, with aspect fill so I do not know how it is been showed as chunks of images
  How could I fix it? thanks</p>
  
  <p>screenshot of storyboard:</p>
  
  <p>initial navigation controller <a href="http://joxi.net/eAOGGOVuPkBVAo" rel="nofollow noreferrer">http://joxi.net/eAOGGOVuPkBVAo</a></p>
  
  <p>case with child view controllers <a href="http://joxi.ru/xAe66odUGXwPry" rel="nofollow noreferrer">http://joxi.ru/xAe66odUGXwPry</a></p>
  
  <p>link to youtube video <a href="https://youtu.be/PRk-WsShGlM" rel="nofollow noreferrer">https://youtu.be/PRk-WsShGlM</a></p>