Steps to reproduce:
1. Create new Unity project using Universal 3D Template
2. Import provided font Asset “QA_Font.ttf”
3. In Project window, select “QA_Font.ttf” and expand Asset by pressing on “>” icon
4. Select “Font Material”
5. In Inspector window minimize and maximize preview window
6. Observe the Font Material in Project window
Actual results: When the Inspector preview pane is resized (minimized or maximized) while a Font Material is selected/visible in the Project window, the Font Material thumbnail disappears or flickers in Project window
Expected results: Resizing the Inspector preview pane has no effect on the Project windows, the Font Material thumbnail remains stable and visible at all times
Reproducible with versions: 6000.5.8f1, 6000.6.0b8, 6000.7.0a4
Can’t test with versions: 6000.3.22f1 and lower (different design used in Project window)
Tested on (OS): macOS Tahoe 26 (M1)