diff --git a/Assets/A2WToolBox/Runtime/Singleton/SceneSingleton.cs b/Assets/A2WToolBox/Runtime/Singleton/SceneSingleton.cs
index 3ff8b84..0035b9f 100644
--- a/Assets/A2WToolBox/Runtime/Singleton/SceneSingleton.cs
+++ b/Assets/A2WToolBox/Runtime/Singleton/SceneSingleton.cs
@@ -6,6 +6,7 @@ namespace A2W
 {
     public class SceneSingleton<T> : MonoBehaviour where T : MonoBehaviour
     {
+        [System.Obsolete]
         public static T instance
         {
             get
diff --git a/Assets/A2WToolBox/Runtime/Singleton/Singleton.cs b/Assets/A2WToolBox/Runtime/Singleton/Singleton.cs
index 7b24c77..bc3d51a 100644
--- a/Assets/A2WToolBox/Runtime/Singleton/Singleton.cs
+++ b/Assets/A2WToolBox/Runtime/Singleton/Singleton.cs
@@ -10,10 +10,10 @@ namespace A2W
         {
             get
             {
-                if (applicationIsQuitting)
-                {
-                    return null;
-                }
+                //if (applicationIsQuitting)
+                //{
+                //    return null;
+                //}
 
                 if (_instance == null)
                 {
@@ -52,12 +52,12 @@ namespace A2W
             }
         }
 
-        private static bool applicationIsQuitting = false;
+        //private static bool applicationIsQuitting = false;
 
-        public void OnDestroy()
-        {
-            applicationIsQuitting = true;
-        }
+        //public void OnDestroy()
+        //{
+        //    applicationIsQuitting = true;
+        //}
     }
 }
 
diff --git a/Assets/Resources/DOTweenSettings.asset b/Assets/Resources/DOTweenSettings.asset
index 62ebbaf..e75d697 100644
--- a/Assets/Resources/DOTweenSettings.asset
+++ b/Assets/Resources/DOTweenSettings.asset
@@ -49,6 +49,6 @@ MonoBehaviour:
     deAudioEnabled: 0
     deUnityExtendedEnabled: 0
     epoOutlineEnabled: 0
-  createASMDEF: 0
+  createASMDEF: 1
   showPlayingTweens: 0
   showPausedTweens: 0