1、用Canvas做UI，Scene界面没显示，但是Game界面显示了，要怎么让Scene界面像Game界面那样显示呢？
Scene界面：
Game界面：
2、用Animation做动画，删过一次动画和动画状态机重新制作，系统报了错：
NullReferenceException: Object reference not set to an instance of an object
UnityEditorInternal.AnimationWindowControl.RegisterCandidates (UnityEditor.UndoPropertyModification[] modifications) (at D:/unity/Editor/Mono/Animation/AnimationWindow/AnimationWindowControl.cs:557)
UnityEditorInternal.AnimationWindowControl.PostprocessAnimationRecordingModifications (UnityEditor.UndoPropertyModification[] modifications) (at D:/unity/Editor/Mono/Animation/AnimationWindow/AnimationWindowControl.cs:534)
UnityEditor.Undo.InvokePostprocessModifications (UnityEditor.UndoPropertyModification[] modifications) (at D:/unity/Editor/Mono/Undo/Undo.bindings.cs:189)
UnityEditor.GenericMenu:CatchMenu(Object, String[], Int32)
这个错误该如何解决呢？