title: The canvas hitbox does not match between scene and game windows
body: <p>Some of the canvas match but some does not.</p>
  <p>Edit:
  Also I can't see those white triangle (do they call anchor?) in my broken canvas. While white triangle do exist in the working canvas. I think this is the reason. How to get those white triangle back?</p>
  <p><a href="https://i.stack.imgur.com/TeamF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TeamF.png" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/jFGpf.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jFGpf.png" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/DY1bt.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DY1bt.jpg" alt="enter image description here" /></a></p>