title: Unity: Animator cannot preview transition
body: <p>I am making a 2d game in Unity and I have a treasure chest, when the player gets near an animation is triggered. In the chest animator I use an empty state as the default state which makes a transition to the OpenChest animation.</p>
  
  <p>However, when I click on the transition arrow, under settings it says "cannot preview transition: source state does not have motion". Is there a way to preview the transition graph?</p>