How to reproduce:
1. Open the attached project “IN-112657”
2. In the Project window, locate and select the “Cube“ prefab
3. Notice the color of the cube in the Preview section
4. Change the Base Map color in the Material section
5. Observe the Preview section in the Inspector

Expected result: Cube color is updated in the Preview
Actual result: Cube color is not updated in the Preview

Reproducible with: 2023.1.0a1, 6000.0.57f1, 6000.2.2f1, 6000.3.0a6

Reproduced on: macOS 15.6 (M1)
Not reproduced on: No other environment tested