Steps to reproduce:
- Open the attached project
- Open the test.UXML asset in UI Builder
- Expand the StyleSheets list and try scrolling - as expected, the list should be scrollable
- Add a new Selector to the USS file
- Try scrolling the StyleSheets list again
Actual results: The StyleSheets list is being forced to the starting position when trying to scroll it. Either by scrollwheel or by dragging the scrollbar.
Expected results: The StyleSheets list can be easily scrolled as in Step 3
Reproducible with versions: 6000.7.0a3
Not reproducible with versions: 6000.0.79f1, 6000.3.20f1, 6000.5.4f1, 6000.6.0b5, 6000.7.0a2
Tested on (OS): macOS 26.5.2