How to reproduce:
1. Open the attached “IN-122602.zip” Project
2. Open the “SampleScene” (Assets/Scenes/SampleScene)
3. Observe the GameObject in the Game View

Expected result: Yellow Cube and Blue Sphere, overlap is Green
Actual result: Sphere is either Black or graphical errors appear in the overlap

Reproducible with: 6000.0.62f1, 6000.2.12f1, 6000.3.0b10, 6000.4.0a4, 6000.5.0a1
Couldn’t test with: 2022.3.68f1 - Downgrade causes unfixable SRP Compilation errors

Reproducible on:
VLNQA00319 - Google Pixel 4 (Pixel 4), CPU: Snapdragon 855 SM8150, GPU: Adreno 640, OS: 13
~~Windows (DirectX12) - reporter’s~~ ( this fix is verified and landed on : 6000.4.0a3 - Oct 2025 )
Pixel 3a (Android 12) - reporter’s
Pixel 4XL (Android 11) - reporter’s

Not reproducible on:
macOS 26.0.1
macOS Standalone Player
VLNQA00598 - samsung Galaxy Fold (SM-F900F), CPU: Snapdragon 855 SM8150, GPU: Adreno 640, OS: 9
VLNQA00580 - Xiaomi Redmi Note 8 (2021) (M1908C3JGG), CPU: Mediatek MT6769Z Helio G85 (12nm), GPU: Mali-G52, OS: 11
VLNQA00566 - samsung Galaxy S8 (SM-G950F), CPU: Exynos 9 Octa 8895, GPU: Mali-G71, OS: 9
VLNQA00411 - Galaxy Z Fold3 5G (SM-F926B), CPU: Snapdragon 888, GPU: Adreno 660, OS: 11
VLNQA00374 - Galaxy S21 Plus 5G (SM-G996U), CPU: Snapdragon 888, GPU: Adreno 660, OS: 11
VLNQA00151 - Samsung Galaxy S9 (USA) (SM-G960U), CPU: Snapdragon 845 SDM845, GPU: Adreno 630, OS: 10
Windows (DirectX11) - reporter’s
Pixel 3a (Android 9) - reporter’s
Pixel 4XL (Android 10) - reporter’s
Pixel 8a (Android 16) - reporter’s
Xperia 1 SO-03L (Android 9) - reporter’s
Xperia 1 VII A501SO (Android 15) - reporter’s
AQUOS sense4 plus SH-M16 (Android 10) - reporter’s
AQUOS sense4 basic A0003SH (Android 10) - reporter’s

Notes:

Possibly related to https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-99670
On Windows (Directx12) the reproduction instead shows the Sphere GameObject as Black, on Android Graphical fragments of the Cube GameObject are only visible on the Overlap