Reproduction steps:
1. Open the attached “RenderingLayerMaskBug.zip” project
2. Open the “AmbientOcclusionBug” Scene
3. Move any GameObject in the Scene
4. Save the Scene
5. Observe the Scene and Game view

Expected result: The Ambient occlusion effect is still visible
Actual result: The Ambient occlusion effect has disappeared

Reproducible with: 2023.3.0b8, 2023.3.0b10
Not reproducible with: 2021.3.36f1, 2022.3.21f1, 2023.2.13f1, 2023.3.0b7

Reproducible on: Windows 11
Not reproducible on: no other environment tested

Note:
- Ambient occlusion reappears when the Play mode is entered or SSAO parameters are changed
- Reproducible on a new URP project