title: Enter in a node and it disappears Arkit
body: <p>I created a sphere node using Xcode. When I get into the sphere, I can't see the sphere anymore because it disappears: </p>
  
  <p><a href="https://i.stack.imgur.com/ZDaAp.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZDaAp.gif" alt="enter image description here"></a>   </p>
  
  <p>I don't understand why and how to see the texture of the sphere when I am inside it. The same happens when I use the app. </p>