Tested locally using Windows10 and a Threadripper 3990 ES + RX6800XT GPU using the repro project from the bug:

Steps to repro:
1. Open the attached project and 'ProgressiveLightmappingExample' scene https://editorbugs.unity3d.com/api/v1.0/attachments/ba03b2c2-4cad-44d1-b847-cbff764f10b9/Progressive-Lightmapper-Adventure-Game.zip
2. In the Preferences window (Edit > Preferences) go to the GICache tab and click the 'Clean Cache" button;
3. In the Lighting window (Window > Rendering > Lighting) click Generate Lighting button;
4. At the end of GI baking (observe the progress bar for spotting it) enable Auto Generate checkbox in the Lighting window.

Expected result:
Editor finishes an auto-bake without crashes.

Actual result:
Editor crashes.

Reproduced in: 2021.2.1f1, 2021.2.2f1, 2022.1.0a15
Not Reproduced in: 2019.4.28f1, 2020.3.22f1, 2021.1.28f1, 2021.2.0f1

Notes:
- Reproducible on Windows10 and a Threadripper 3990 ES + with RX6800XT GPU AMD GPU.