How to reproduce:
Open the attached project "URP reflection probe bug.zip"
Expected results: "ShaderGraph" GameObject is reflective
Actual results: "ShaderGraph" GameObject is black
Reproducible with: 2022.3.31f1, 6000.0.4f1
Could not test with: 2021.3.39f1 (no Forward+ option)
Reproducible on: Windows 10 22H2
Not reproducible on: No other environment tested