Reproduction steps:
1. Open the attached project "HDRP_Lightbake_Tests_9_2022"
2. Open the Lighting window
3. Click "Generate Lighting"
Reproducible on: 2022.1.18f1
Notes:
- Couldn't reproduce on a new project
- Not fully tested due to the time needed to reproduce
- On 2022.2.4f1 and 2023.1.0b1, after baking for about 1,5h there are no background tasks and no Lighting Data asset (see attached screenshot)
- When generating lighting for one of the composite Scenes, the bake takes ~12 minutes and the Lighting Data asset is created
- Related forum post: https://forum.unity.com/threads/lighting-asset-file-not-saving-after-a-bake.1340828/