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

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

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

 

Noticed same problem with built-in rendering pipeline after upgrading from 2020.3.25 to 2020.3.40
https://forum.unity.com/threads/uni...es-poor-performance-etc.1357034/#post-8578675