NullReferenceException occurs when searching presets in “Select Preset” window

Unity: Search

Open

6.5.X

6.4.X

6.3.X

Create a Unity project
Set Unity theme to "Light" (Unity -> Settings -> General -> Editor Theme -> Light)
Click the "AI" button
Click "Agree and install Unity AI"
When the installation is complete, open "Assistant"
Verify that "Agent" mode would be selected
Type any command "Generate 3D model of the house"
Wait, while it will be generated
Select the "Models" folder in the "Project" window
Select an asset in the "House_Assets" folder
In the "Inspector" window, click the "Select Preset" icon
Create a few Gitf Importer presets
Open the Inspector window in the "Select Preset" window
Select one newly created preset
Verify that its details are displayed in the Inspector window
Type the search string into the "Search Preset" field and click Enter
Observe the result

Actual results: Console displays "NullReferenceException: Object reference not set to an instance of an object" error

Expected results: No error in the Console view

Reproducible with versions: 6000.3.10f1, 6000.4.0b10, 6000.5.0a8

Tested on (OS): macOS - Tahoe 26.3

Notes: Full error

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.Search.SearchView.GetDefaultAction (UnityEditor.Search.SearchSelection selection, System.Collections.Generic.IEnumerable`1[T] items) (at /Users/bokken/build/output/unity/unity/Modules/QuickSearch/Editor/UITK/SearchView.cs:686)
UnityEditor.Search.SearchBaseCollectionView`1[T].OnKeyNavigation (UnityEngine.UIElements.KeyDownEvent evt) (at /Users/bokken/build/output/unity/unity/Modules/QuickSearch/Editor/UITK/SearchBaseCollectionView.cs:344)
UnityEditor.Search.SearchGlobalEventHandlerManager.HandleGlobalEventHandlers[T] (UnityEditor.Search.SearchGlobalEventHandlerManager eventManager, T evt) (at /Users/bokken/build/output/unity/unity/Modules/QuickSearch/Editor/UITK/SearchGlobalEventHandlerManager.cs:106)
UnityEditor.Search.SearchWindow.HandleKeyboardNavigation (UnityEngine.UIElements.VisualElement target, UnityEngine.UIElements.KeyDownEvent evt, UnityEngine.Event imguiEvt) (at /Users/bokken/build/output/unity/unity/Modules/QuickSearch/Editor/UITK/SearchWindow.cs:241)
UnityEditor.Search.SearchWindow.OnGlobalKeyDownEvent (UnityEngine.UIElements.KeyDownEvent evt) (at /Users/bokken/build/output/unity/unity/Modules/QuickSearch/Editor/UITK/SearchWindow.cs:200)
UnityEngine.UIElements.EventCallbackFunctor`1[TEventType].Invoke (UnityEngine.UIElements.EventBase evt) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventCallback.cs:64)
UnityEngine.UIElements.EventCallbackRegistry+DynamicCallbackList.Invoke (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel, UnityEngine.UIElements.VisualElement target) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventCallbackRegistry.cs:245)
UnityEngine.UIElements.EventDispatchUtilities.HandleEventAcrossPropagationPath (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel, UnityEngine.UIElements.VisualElement target, System.Boolean isCapturingTarget) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventDispatchUtilities.cs:179)
UnityEngine.UIElements.EventDispatchUtilities.DispatchToFocusedElementOrPanelRoot (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventDispatchUtilities.cs:509)
UnityEngine.UIElements.KeyboardEventBase`1[T].Dispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/KeyboardEvents.cs:265)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/EventDispatcher.cs:420)
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:216)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Panel.cs:723)
UnityEditor.UIElements.EditorEventDispatchUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel, UnityEngine.Event eventInstance) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/EditorEventDispatchUtility.cs:89)
UnityEditor.UIElements.DefaultWindowBackend.ProcessEvent (UnityEngine.Event e) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/WindowBackends/DefaultWindowBackend.cs:114)
UnityEditor.GUIView.ProcessEvent (UnityEngine.EntityId entityId, System.IntPtr nativeEventPtr, System.Boolean& result) (at /Users/bokken/build/output/unity/unity/Editor/Mono/GUIView.cs:70)

NullReferenceException occurs when searching presets in “Select Preset” window

Unity: Search

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NullReferenceException occurs when searching presets in “Select Preset” window

Unity: Search

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