title: Mapbox extrusions show in Android but not iOS
body: <p>I have a Mapbox map style created in Studio to which I have added extrusion layers. These appear in my app on Android, but not in iOS. I did not change anything in the app to make them appear. I'm using the Mapbox iOS framework 4.9 - as far as I can tell extrusions were supported before that version. The two versions are using the same map style.</p>
  
  <p>Any ideas what I'm not doing?</p>
  
  <p>This is the Android version:</p>
  
  <p><a href="https://i.stack.imgur.com/6RJKk.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6RJKk.jpg" alt="Android screenshot"></a></p>
  
  <p>And this is what the same map looks like on iOS.
  <a href="https://i.stack.imgur.com/iHfZY.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iHfZY.jpg" alt="enter image description here"></a></p>