Steps to reproduce:
1. Create new Unity project using HDRP 3D Template
2. Open Rendering Debugger window (Window > Analysis > Rendering Debugger)
3. Select “Camera” section
4. Change Frame Settings to “SceneCamera”
5. Below “Debug” open drop-down menu and try changing form “Deferred” to “Forward”

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Actual results: Changing debug mode from “Deferred” to “Forward” does nothing
Expected results: Changing debug mode from “Deferred” changes to “Forward”

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Reproducible with versions: 6000.0.71f1, 6000.3.12f1, 6000.4.0f1, 6000.5.0b1
Not reproducible with versions: 6000.6.0a1

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Tested on (OS): macOS Silicon Tahoe 26.3.1 (a) (M1)

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Notes:

•  if Rendering Debugger window is docked next to Game tab, debug mode allows changing between “Deferred” and “Forward”