需求是做一个技能编辑器，我想使用 SkeletonGraphic 来预览动作，但我使用EditorUpdate来调用 SkeletonGraphic 的Update(deltaTime)，使用 animationState.SetAnimation 来播放动画时，动画并不会播放（打印发现TrackEntry的TrackTime是有变化的，TimeScale 一直设置为1） 😢
== I would like to make a skill editor by using SkeletonGraphic to preview the animations, but when I using EditorUpdate to call the SkeletonGraphic.Update(deltaTime) and using SkeletonGraphic.AnimationState.SetAnimation to play animation, animation didn't play (found TrackEntry TrackTime had changed, TimeScale had been set to 1)
