Steps to reproduce:
1. Create a new Unity project using the Universal 3D Template
2. Open the Profiler window (Window > Analysis > Profiler)
3. Select the CPU Usage module
4. Ensure New Timeline (Experimental) view is selected
5. Right-click the Profiler tab and select UI Toolkit Debugger
6. Click Pick Element in the UI Toolkit Debugger
7. Click on the Jobs panel (displays "No event selected")
8. Once UI Toolkit Debugger regains focus, attempt to scroll its elements list
Actual results: The elements list in the UI Toolkit Debugger flickers continuously, making the window unusable.
Expected results: The elements list remains stable and the user can scroll normally in the UI Toolkit Debugger.
Reproducible with versions: 6000.7.0b1, 7000.0.0a1
Can’t test with versions: 6000.0.0f1, 6000.0.84f1, 6000.3.24f1, 6000.5.11f1, 6000.6.2f1 (due to feature not existing)
Tested on (OS): macOS 26.6.1 (Apple silicon)