How to reproduce:
1. Open the attached “IN-116190.zip” Project
2. Build and Run on VisionOS
3. Observe the UI elements in the Player
4. Walk around and observe the UI elements from different angles

Expected result: UI elements visually do not change and still have transparent effects on them
Actual result: UI culling occurs on certain angles

Reproducible with: 2.3.1 (6000.0.59f1, 6000.2.7f1)
Couldn’t test with:
2.4.2 (6000.3.0b4) - Build never successful stuck on “Extracting script serialization layouts”
2.4.3 (6000.3.0b4, 6000.4.0a1) - App doesn’t open, Xcode throws Insufficient Permission Error

Reproducible on:
Apple Vision Pro on VisionOS 2.6

Testing environment: macOS 26.0 (M3 Pro)

Notes:
- Also reproducible in Simulator
- For easier testing, it’s recommended to use the Simulator
- Reproduction can be easily verified by observing the UI Element below the “Hello World!” Text as it starts showing the generic VisionOS Room when the issue is reproduced
- Reporter stated: “Creating new VisionOS sorting groups or sorting layers to order the outer-sphere and canvas do not work.”
- Reporter also stated: “The outer-sphere's material is also transparent. For this project, turning the material opaque is not an option.”
- Issue is possibly caused by “z-depth” overriding the “Sorting Groups”