update

Packages/Runtime~/Unity/Common/Scripts/Animator/UnityAnimator.cs

@@ -48,6 +48,11 @@ namespace BITKit.Animations
                         layerInfos.Add(new());
                     }
                 }
+
+                if (index > layerInfos.Count - 1)
+                {
+                    throw new Exception("Index out of range");
+                }
                 return layerInfos[index];
             }
         }
@@ -107,10 +112,9 @@ namespace BITKit.Animations
 
         private void Update()
         {
-            int index = 0;
-            foreach (var x in layerInfos)
+            for (var i = 0; i < animator.layerCount; i++)
             {
-                x.currentState = animator.GetCurrentAnimatorStateInfo(index++);
+                this[i].currentState = animator.GetCurrentAnimatorStateInfo(i);
             }
             isMatchingTarget = animator.isMatchingTarget;
         }