How to reproduce:
1. Open the user's attached "DxrProfileTest" project
2. In the Project window select the "Test Volume" Asset
3. In the Inspector individually check all of the options (don't press the "all" button to check all of the options automatically)
4. In the Project window deselect and select the "Test Volume" Asset again

Expected results: All of the options stay checked
Actual results: Certain options became unchecked

Reproducible with: 10.2.0 (2020.2.0b13, 2021.1.0a7)
Not reproducible with: 4.10.0-preview (2018.4.29f1), 7.5.1 (2019.4.15f1), 8.2.0 (2020.1.15f1), 10.1.0 (2020.2.0b12, 2021.1.0a7)

Notes:
- These are the Overrides and their properties that are not saved:
Screen Space Reflection Override:
Minimum Smoothness, Smoothness Fade Start, Max Ray Length, Clamp Value, Denoise, Denoise Radius
Screen Space Global Illumination:
Max Ray Length, Clamp Value, Denoise, Half Resolution Denoiser, Denoiser Radius, Second Denoiser Pass
- Modifying those values are not saved either
- When checking the options by pressing the "all" button all of the options will stay checked after deselecting and selecting the Asset again