How to reproduce:
1. Open the attached project
2. Make sure GlitchEffect scene is added to build settings
3. Build & Run project on device

Expected result: no rendering issues
Actual result: missing glitch effect on cubes

Reproducible: 2021.2.0a10 (URP 12.0)

Reproducible on:
VLNQA00103, Samsung Galaxy Note8 (SM-N950F), Android 7.1.1, CPU: Exynos 9 Octa 8895, GPU: Mali-G71
VLNQA00269, Samsung Galaxy S10e (SM-G970F), Android 10, CPU: Exynos 9 9820, GPU: Mali-G76
VLNQA00340, Samsung Galaxy Note20 Ultra 5G (SM-N986B), Android 10, CPU: Exynos 990, GPU: Mali-G77

Not reproducible:
Samsung Galaxy Z Fold2 5G
Google Pixel 4, Android 10, CPU: Snapdragon 855 (SM8150), GPU: Adreno (TM) 640
VLNQA00280, Samsung Galaxy S10+ USA, CPU: Snapdragon 855 SM8150, GPU: Adreno 650, Android: 9
VLNQA00111, Samsung Galaxy J5(2016) (SM-J510FN), Android 7.1.1, CPU: Snapdragon 410 MSM8916, GPU: Adreno (TM) 306
VLNQA00104, Lge Nexus 5 (Nexus 5), Android 6.0.1, CPU: Snapdragon 800 MSM8974, GPU: Adreno (TM) 330
VLNQA00336, Huawei Y6p, CPU: MediaTek MT6762R, GPU: PowerVR Rogue GE8320, Android: 10

Notes:
- Reproducible with both color spaces and all Graphics APIs