fix update order issue

Author: i-saint

AlembicImporter/Assets/UTJ/Alembic/Scripts/Importer/AlembicStreamPlayer.cs

@@ -80,6 +80,10 @@ public void Update()
 
         void LateUpdate()
         {
+            // currentTime maybe updated after Update() by other GameObjects
+            if (!updateStarted && lastUpdateTime != currentTime)
+                Update();
+
             if (!updateStarted)
                 return;
             updateStarted = false;