title: Unity tile palette empty 2018.1.0f2
body: <p>I am trying to use the tilemap system in 2018.1.0f2. I have dragged in my sprites, sliced them and made tiles for them, however when I go to drag them into a new palette nothing is displayed just an empty grid system.</p>
  
  <p>Any suggestions would be great.</p>
  
  <p><a href="https://i.stack.imgur.com/7EpCV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7EpCV.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/uRLcr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uRLcr.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/gQ1bX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/gQ1bX.png" alt="enter image description here"></a></p>