title: Screen Captures Using Unity and ARKit
body: <p>I'm taking a screenshot in a Unity application using </p>
  
  <p><code>ScreenCapture.CaptureScreenshot ("screenshot.png", 2);</code></p>
  
  <p>But the AR background being rendered by ARKit ends up being completely black with other GameObjects rendering correctly (floating in black space).</p>
  
  <p>Have others encountered this issue?
  Is there a known workaround?</p>