diff --git a/Alchemy/Assets/Alchemy/Editor/Internal/InspectorHelper.cs b/Alchemy/Assets/Alchemy/Editor/Internal/InspectorHelper.cs
index 407618f..a7bfbc6 100644
--- a/Alchemy/Assets/Alchemy/Editor/Internal/InspectorHelper.cs
+++ b/Alchemy/Assets/Alchemy/Editor/Internal/InspectorHelper.cs
@@ -101,7 +101,10 @@ public static void BuildElements(SerializedObject serializedObject, VisualElemen
                 foreach (var member in node.Members.OrderByAttributeThenByMemberType())
                 {
                     // Exclude if member has HideInInspector attribute
-                    if (member.HasCustomAttribute<HideInInspector>()) continue;
+                    // but not "m_SerializedDataModeController" on EditorWindow
+                    // (Unity added HideInInspector here in 2022.3.23f1)
+                    if (member.HasCustomAttribute<HideInInspector>() && member.Name != "m_SerializedDataModeController") 
+                        continue;
 
                     // Add default PropertyField if member has DisableAlchemyEditorAttribute
                     if (member.GetCustomAttribute<DisableAlchemyEditorAttribute>() != null)