title: Not able to completely hide model in forge viewer
body: <p>I am trying to hide the complete model in forge-viewer, for that I am calling forge visibility API as follows:</p>
  
  <p><code>viewer.impl.visibilityManager.setNodeOff(viewer.model.getModelId(),true)</code></p>
  
  <p>where viewer is a object of <code>GUIViewer3D</code>.</p>
  
  <p>But this is not hidding the complete model, some components in the model are still visible.</p>
  
  <p>I think it is a bug in forge-viewer because if I pass a root node of model to <code>setNodeOff()</code> API it has to hide whole model. I am sure that there is only one model loaded in my viewer session.</p>
  
  <p><a href="https://i.stack.imgur.com/E9ntX.png" rel="nofollow noreferrer">Refer this image</a> for the elements which are still visible after calling <code>viewer.impl.visibilityManager.setNodeOff(viewer.model.getModelId(),true)</code></p>