*Steps to reproduce:*
# Open a new Unity project
# Go to Window → Search → New Window
# Ensure Toggle Search Query Builder Mode is enabled
# Click the Toggle Saved Search Panel
# In the Builtins/Reports dropdown, select any of the options
# Dock the Search window

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*Actual results:* 
* Console logs error:
{code:java}
No measure function set in this node's config
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&) (at /home/bokken/build/output/unity/unity/Modules/IMGUI/GUIUtility.cs:224)
{code}

* Scene view goes blank after docking the Search window

*Expected results:* Docking the Search window should not trigger errors. The Scene view should remain visible and functional

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*Reproducible with versions:* 6000.3.0b1

*Can’t test with versions:* 6000.0.56f1, 6000.1.16f1, 6000.2.4f1, 6000.3.0a1 (No Builtin dropdown sections)

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*Tested on (OS):* Ubuntu 22.04, macOS 15.6