How to reproduce:
1. Open the attached “demo.zip” project
2. Open the “SampleScene”
3. Create 2 Physics materials A and B
4. Go to Edit → Project Settings → Physics → Settings → Game Object
5. Set the Default Material to be Physics Material A
6. Delete the Physics Material A
7. Create a new Game Object and add a Box Collider to it
8. Enter and Exit Play Mode
9. Assign the Physics Material B to the Box Collider
10. Observe the Console Window
Expected result: No messages are shown
Actual result: “Recursive Serialization is not supported” error is shown
Reproducible in: 2023.3.0a15, 6000.0.12f1
Not reproducible in: 2021.3.41f1, 2022.3.39f, 2023.3.0a14
Reproducible on: Windows 11
Not reproducible on: No other environment tested