How to reproduce:
1. Open the “IN-75569_repro“ project
2. Open the “SampleScene“
3. Navigate to Window → Rendering → Lighting
4. In the Lighting window select Adaptive Probe Volumes and press “Generate Lighting“
5. Observe the “ground“ GameObject

Expected result: GameObject has even lighting
Actual result: GameObject has uneven lighting

Reproducible with: 6000.0.1f1
Could not test with: 2021.3.38f1, 2022.3.28f1 (Adaptive Probe Volumes is not supported)

Reproducible on: Windows 10, Windows 11 (user’s device)
Not reproducible on: No other environment tested

Note: Reproducible in Player

Note From Adrien: This is likely an issue in the lightmapper. When sky occlusion is enabled, we pass true for the ignoreIndirectEnvironment parameter in IntegrateIndirectRadiance. Maybe the noise is coming from uninitialized values when env lighting is ignored ?