Steps to reproduce:
1. Create new Unity project
2. Open UI Builder window
3. In UI Builder > Hierarchy add these elements: Mask64, Toggle, Button and Scroller
4. Select Mask64 in Hierarchy
5. In Inspector find “Filter”
6. Press “+” and choose Blur
7. Change Blue Value to 10
8. Select Toggle Element in Hierarchy
9. Also add Blur Filter to Toggle
10. Keep changing Value from 100 to 300
Actual results: Rendering artifacts appear all over UI Builder window
Expected results: There should be no rendering artifacts visible in the UI Builder window, no such high values should be allowed to set
Reproducible with versions: 6000.3.0b10, 6000.4.0a4, 6000.5.0a1
Can’t test with versions: 6000.2.12f1 and lower (No Filter property available)
Tested on (OS): macOS Silicon Tahoe 26.0 (M1)