diff --git a/Runtime/LwguiGradient/LwguiGradient.cs b/Runtime/LwguiGradient/LwguiGradient.cs
index 99284ac..83b79bd 100644
--- a/Runtime/LwguiGradient/LwguiGradient.cs
+++ b/Runtime/LwguiGradient/LwguiGradient.cs
@@ -126,9 +126,13 @@ public void Clear(ChannelMask channelMask = ChannelMask.All)
         
         public void DeepCopyFrom(LwguiGradient src)
         {
-            _curves = new List<AnimationCurve>();
             for (int c = 0; c < (int)Channel.Num; c++)
-                _curves.Add(new AnimationCurve());
+            {
+                if (_curves.Count == c)
+                    _curves.Add(new AnimationCurve());
+
+                _curves[c].keys = new Keyframe[0];
+            }
 
             for (int c = 0; c < src._curves.Count; c++)
             {
diff --git a/UnityEditorExtension/LwguiGradientEditor/LwguiGradientWindow.cs b/UnityEditorExtension/LwguiGradientEditor/LwguiGradientWindow.cs
index 9772616..05c03df 100644
--- a/UnityEditorExtension/LwguiGradientEditor/LwguiGradientWindow.cs
+++ b/UnityEditorExtension/LwguiGradientEditor/LwguiGradientWindow.cs
@@ -135,6 +135,7 @@ public static void UpdateCurrentGradient(LwguiGradient newGradient, bool doDeepC
             // Debug.Log("Update");
             _lwguiGradientWindow.Init();
             _lwguiGradientWindow.Repaint();
+            GUI.changed = true;
         }
         
         private static LwguiGradientWindow GetWindow(bool focus = true) => (LwguiGradientWindow)GetWindow(typeof(LwguiGradientWindow), true, "LWGUI Gradient Editor", focus);
@@ -259,6 +260,7 @@ private void Clear()
         {
             _lwguiGradientEditor = null;
             _lwguiGradientWindow = null;
+            _lwguiGradientLibraryEditor = null;
         }
 
         private void RegisterEvents()
diff --git a/package.json b/package.json
index 6928163..2d53240 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.jasonma.lwgui",
-  "version": "1.18.3",
+  "version": "1.18.4",
   "displayName": "LWGUI",
   "description": "A Lightweight, Flexible, Powerful Shader GUI System for Unity.",
   "keywords": [