To reproduce:
1. Open the project “BugHunt2 Built-in”
2. Enter Play mode
3. Notice that in the Console the “Second” Scene’s Ambient color is black
4. Exit Play mode
5. Open the “Second” scene
6. Enter Play mode
7. Notice that the “Second” Scene's Ambient color is not black

Expected result: The colors in the 4th and 8th steps are the same
Actual result: The Ambient color of the “Second” scene becomes black

Reproducible with: 2020.3.38f1, 2021.3.7f1, 2022.1.11f1, 2022.2.0b3, 2023.1.0a4

Reproduced on: macOS Monterey 12.4 (Intel)

Note:
- If the direction light is oriented the same in both scenes the issue does not appear

User’s note:
- The effect can be observed by adding some additional objects or with RenderSettings.ambientProbe.Evaluate which should report some non-black values