How to reproduce:
1. Create a new Unity project and a new scene in it
2. In the Hierarchy, select the "Main Camera" GameObject
3. Navigate to the bottom of the Inspector, hover above the "Asset Labels" and try dragging it
Expected results: There is nothing that can be expanded
Actual results: There is an invisible tab that expands and can be expanded so no Components are seen
Reproducible with: 2023.2.0a19, 6000.0.17f1
Not reproducible with: 2021.3.43f1, 2022.3.44f1, 2023.2.0a18
Reproducible on: Windows 11 Pro
Not reproducible on: No other environment tested
Notes:
- In the first regressed versions line is not visible but the tab still can be expanded
- The invisible tab size is reset after unfocusing the GameObject