v1.0.10

Fix Hierarchy overlay width calculation outside OnGUI:
- remove EditorGUIUtility.currentViewWidth fallback from update path
- use hierarchy window width, then UIElements resolved width, then safe constant fallback to prevent ArgumentException

Author: M-A-L-bl-LLl

Editor/HierarchyFolder/HierarchyFolderNavbar.cs

@@ -123,7 +123,20 @@ private static float GetHierarchyWindowWidth()
         {
             if (_hierarchyWindow != null && _hierarchyWindow?.position.width > 0f)
                 return (float)_hierarchyWindow.position.width;
-            return EditorGUIUtility.currentViewWidth;
+
+            if (_overlay != null)
+            {
+                var parent = _overlay.parent;
+                if (parent != null)
+                {
+                    float resolvedWidth = parent.resolvedStyle.width;
+                    if (resolvedWidth > 0f && !float.IsNaN(resolvedWidth) && !float.IsInfinity(resolvedWidth))
+                        return resolvedWidth;
+                }
+            }
+
+            // Safe non-OnGUI fallback (avoid EditorGUIUtility.currentViewWidth here).
+            return 300f;
         }
 
         private static float GetOverlayLeft(float hierarchyWidth)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "com.nomorepain.editor",
-  "version": "1.0.9",
+  "version": "1.0.10",
   "displayName": "No More Pain Editor",
   "description": "Unity Editor productivity tools: Inspector Tabs, Play Mode Save, Component Copy/Paste and more.",
   "unity": "2021.3",