Steps to reproduce:
1) Dwonload attached project and open in Unity
2) Make sure Gles3 is the Only API in the Graphics APIs list
3) Build and Run FPSCameraDemoStacked scene on a device
Observe screen glithces (check the atatched video "repro.mp4")
Reproduced with:
Version: 2021.2.0a4.568
Revision: trunk c4ea5efac098
Built: Fri, 22 Jan 2021 18:55:26 GMT
URP version: 11.0.0, 12.0.0
Devices under testing:
Reproduced with:
VLNQA00268, Samsung Galaxy S10+, 10.0.0, Exynos 9 9820, Mali-G76
Not reproduced with:
VLNQA00217, Razer Phone 2, 9.0.0, Snapdragon 845 SDM845, Adreno 630
OnePlus Nord, 10, Snapdragon 765G SM7250-AB, Adreno 620
VLNQA00091, Google Pixel 2 XL, 11.0.0, Snapdragon 835 MSM8998, Adreno 540
iPad Air3, SoC: A12, iOS: 13.2.3
iPad Air4, SoC: 14, iOS: 14.0
iPhone 12Pro, SoC: 14, iOS: 14.1
Note: Not reproducible using Vulkan graphics API