title: Issue With Xamarin.Forms Images in iOS Renderer
body: <p>I hope someone can help me with this weird problem.</p>
  
  <p>I'm in Xamarin Forms, in a renderer. I'm passing a <code>Xamarin.Forms.ImageSource</code> into a <code>ImageLoaderSourceHandler</code>. </p>
  
  <pre><code>var_imageLoader = new ImageLoaderSourceHandler();
  </code></pre>
  
  <p>However, when I <code>await</code> the <code>LoadImageAsync</code> method it always returns null, rather than <code>UIimage</code>. </p>
  
  <pre><code>if (_view.Icon?.Source != null)
  {
      _iconImageView.Image = 
          await _imageLoader.LoadImageAsync(_view.Icon.Source);
  }
  </code></pre>
  
  <p>My images are in the <code>Resource</code> directory and are <code>BundleResource</code>as build action. </p>
  
  <p>The file naming is correct (menu.png, menu@2x.png, menu@3x.png) and I've run out if ideas.</p>
  
  <p>Anyone got a clue or two ?
  Thanks</p>