Steps to reproduce:
1. Create new Unity project using Universal 3D Template
2. Open Package Manager
3. Find and install Entities package
4. Open “Systems” window (Window > Entities > System)
5. Right-click on Systems tab > open UI Toolkit Debugger window
6. Right-click on any element from the list and select Inspect Element
7. When UI Toolkit Debugger becomes focused, observe the list
Actual results: Elements are flickering in the UI Toolkit Debugger window list
Expected results: Elements are not flickering in the UI Toolkit Debugger window list
Reproducible with versions: 6000.5.0a2 (4eb3f165a11f), 6000.5.7f1, 6000.6.0b7, 6000.7.0a4
Not reproducible with versions: 6000.3.21f1, 6000.4.12f1, 6000.5.0a1 (0136d7329743)
Tested on (OS): macOS Tahoe 26.5.2 (M1)