Multi-threaded rendering visual glitches on Android with no Vulkan support

[HSForge]

Hi. So I’m experiencing visual glitches & flickers seemingly happen to particle system objects, as shown below:

2022 11 11 12 09 54

The glitch stats after ~0:13 and it seems to get worse over time.

It happens only if the multi-threaded rendering is turned on, on device/emulator that doesn’t have vulkan support (as far as I noticed). But here’s the catch, it only happens ever since we migrated to Unity 2021 last week. We used Unity 2019.4 before and everything was totally fine, even with multi-threaded rendering on. Why is that? Is this a known bug? Can this be fixed in future 2021 updates?

For now I will just disable the multi-threaded rendering option as it doesn’t seem to affect performance at all, as far as I can see.

And here’s some extra info that might be useful:
Unity version: 2021.3.11f1
Render pipeline: URP 12.1.7

Previous Unity version: 2019.4.31f1
Previous render pipeline: URP 7.7.1

[Bozdo]

Noticed same problem with built-in rendering pipeline after upgrading from 2020.3.25 to 2020.3.40

Unity 2021.3.11f1 URP *MAJOR* issues (Visual glitches, poor performance, etc.)

Have the same problem 2 with particles on Android devices after upgrading from Unity 2020.3.25 to 2020.3.40 and built-in rendering pipeline (also tested 2020.3.35-2020.3.40 and 2021.3.10 versions and have save glitches). It only happens with OpenGL ES api on Android and never with Vulkan api, disabling multithreaded rendering does not help. Looks like it depends on overall scene complexity because with small test scene with a few Particle systems glitches never happen. Also glitches happen with …