How to reproduce:
1. Open the attached "IN-85625" project
2. Open “Assets/Bug/Scene.unity”
3. Locate “PC_Renderer” inside the Assets folder and enable Screen Space Ambient Occlusion in the Inspector window
4. Select “Volumetric Light (1)” in the Hierarchy and hover the pointer over the GameObject’s Inspector window
5. Observe the Console window

Expected result: No errors appear in the Console window
Actual result: NullReferenceException error in the Console window

Reproducible in: 2023.3.0a18 , 6000.0.21f1
Not reproducible in: 2021.3.44f1, 2022.3.50f1, 2023.1.0a17, 6000.0.23f1
Fixed in: 6000.0.22f1

Reproducible on: Windows 11, macOS 13 (M1), macOS 14.5 (M1 Ultra)
Not reproducible on: No other environments tested

Note: In versions before 6000.0.14f1 an Assertion error gets thrown instead of a NullReferenceException