Instantiated objects do not show in the new Hierarchy when they are instantiated through 'AssetDatabase.LoadAssetAtPath' in a method attributed with 'RuntimeInitializeOnLoadMethod'

How to reproduce:

1. Open the “StaticInstantiateHierarchyBug.zip“ project
2. Open the “MainMenu“ Scene
3. Observe the Scene view and the Hierarchy window

Actual result: The Camera Gizmo is seen in the Scene view; however, no GameObject for the Camera is displayed in the Hierarchy window
Expected result: The Camera Gizmo is seen in the Scene view, and a GameObject for the Camera is displayed in the Hierarchy window

Reproducible in: 6000.3.0a2, 6000.3.2f1, 6000.4.0b1, 6000.5.0a3
Could not test in: 6000.0.64f1, 6000.3.0a1 (New Hierarchy window is not featured yet)

Reproduced on: Windows 11 Pro (25H2)
Not reproduced on: No other environment tested

Notes:

• Upon selecting the instantiated Camera in the Scene view, no selection in the Hierarchy is made
• Pinging the object is impossible due to an ongoing UUM-130184 bug
• After renaming the instantiated GameObject in the Inspector, the GameObject becomes visible in the Hierarchy window
• Not reproducible in the old Hierarchy window
• After reproduction, turning off and on the ‘use new Hierarchy window’ option displays the instantiated GameObjects