Reproduction steps:
1. Open the “TestProject” Project
2. Select “Assets/test.physicMaterial” PhysicMaterial in the Project Window
3. In the top menu select Window > UIToolkit > Debugger
4. In the UIToolkitDebugger Window press the “Pick Element” Button
5. Select the “test” PhysicMaterial in the Inspector Window

Expected results: PropertyFields for PhysicMaterialCombine enum in the PhysicMaterial asset are drawn
Actual results: PropertyFields for PhysicMaterialCombine enum in the PhysicMaterial asset are not drawn

Reproducible with: 2021.1.0a2, 2021.1.28f1, 2021.3.18f1, 2022.2.0a8
Not reproducible with: 2020.3.44f1, 2021.1.0a1, 2022.2.8f1, 2023.1.0a26, 2023.2.0a3
Fixed in: 2022.2.0a9

Reproduced on: Intel MacOS 13.1