How to reproduce:
1. Create a new project with any template
2. Create a new material (Asset > Create > Material)
3. Select the created material in the Project window
4. Select the Inspector window and resize the Preview Material window to see the scrollbar in the Inspector window
5. Edit any field in the Inspector window
6. Save changes either by Ctrl + S or File > Save
7. Observe the Inspector window

Expected result: Inspector window is usable, can be scrolled and properties can be edited
Actual result: Inspector window becomes unusable and scrollbar thumb disappeared

Reproducible in: 2022.3.11f1, 2022.3.15f1, 2023.2.3f1, 2023.3.0a17
Not reproducible in: 2021.3.33f1, 2022.3.10f1

Reproduced on: Windows 10
Not reproduced on: No other environments tested

Note:
- Reproducible only with Material Inspector
- Resizing the Inspector window makes it usable again