Steps to reproduce:

1. Create a new URP project.
2. Drag all the individual files in the attached Tree.zip to the Project view in the Editor.
3. A NormalMap settings window will pop up. Click "Fix now".

Actual results: MissingReferenceException error appears. Detailed in notes.

Expected results: No errors.

Reproducible with versions: 6000.0.20f1, 6000.0.7f1

Not reproducible with versions: 6000.0.6f1, 2022.3.47f1, 2021.3.42f1

Tested on (OS): MacOS Sonoma 14.6.1

{}Notes:{}{}{}
{code:java}
MissingReferenceException: The object of type 'UnityEditor.HostView' has been destroyed but you are still trying to access it.
Your script should either check if it is null or you should not destroy the object.
UnityEngine.Object+MarshalledUnityObject.TryThrowEditorNullExceptionObject (UnityEngine.Object unityObj, System.String parameterName) (at /Users/bokken/build/output/unity/unity/Runtime/Export/Scripting/UnityEngineObject.bindings.cs:815)
UnityEngine.Bindings.ThrowHelper.ThrowNullReferenceException (System.Object obj) (at /Users/bokken/build/output/unity/unity/Runtime/Export/Scripting/BindingsHelpers.cs:61)
UnityEditor.GUIView.GetBackingScaleFactor () (at <642f1e8612c54a1a810c9718ca7ddabc>:0)
UnityEditor.UIElements.EditorPanel.GetBackingScaleFactor (System.Object obj) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/EditorPanel.cs:53)
UnityEditor.UIElements.EditorPanel.GetBackingScaleFactor () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/EditorPanel.cs:46)
UnityEditor.UIElements.EditorPanel.CheckPanelScaling () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/EditorPanel.cs:68)
UnityEditor.UIElements.EditorPanel.ValidateLayout () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/EditorPanel.cs:86)
UnityEngine.UIElements.Panel.Pick (UnityEngine.Vector2 point) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Panel.cs:1227)
UnityEngine.UIElements.BaseVisualElementPanel.RecomputeTopElementUnderPointer (System.Int32 pointerId, UnityEngine.Vector2 pointerPos, UnityEngine.UIElements.EventBase triggerEvent) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Panel.cs:628)
UnityEngine.UIElements.EventDispatchUtilities.DispatchToElementUnderPointerOrPanelRoot (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel, System.Int32 pointerId, UnityEngine.Vector2 position) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventDispatchUtilities.cs:499)
UnityEngine.UIElements.MouseEnterWindowEvent.Dispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/MouseEvents.cs:881)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/EventDispatcher.cs:415)
UnityEngine.UIElements.EventDispatcher.ProcessEventQueue () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/EventDispatcher.cs:365)
UnityEngine.UIElements.EventDispatcher.OpenGate () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/EventDispatcher.cs:318)
UnityEngine.UIElements.EventDispatcherGate.Dispose () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/EventDispatcher.cs:79)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/EventDispatcher.cs:429)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/EventDispatcher.cs:215)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Panel.cs:590)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/UIElementsUtility.cs:513)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/UIElementsUtility.cs:232)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/UIElementsUtility.cs:76)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/UIElementsUtility.cs:30)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at /Users/bokken/build/output/unity/unity/Modules/IMGUI/GUIUtility.cs:219){code}