Image is culled by transparency in Scene View when using a custom Canvas Material in HDRP Shader Graph

Reproduction steps:
1. Open the attached “IN-112737” project
2. Open the “OutdoorsScene” Scene
3. Observe the Scene View

Expected result: Images blend correctly in the Scene View, just as they do in the Game View
Actual result: The transparency incorrectly culls overlapping UI images completely

Reproducible with: 6000.0.8f1, 6000.0.55f1, 6000.2.1f1, 6000.3.0a5
Not reproducible with: 6000.0.7f1

Reproducible on: Windows 11
Not reproducible on: No other environments tested