I was using Niagara to create a shell-eject fx for the guns. After the configuration of the collision, most of the shell ejected onto the ground were correct. They gradually slowed down and entered resting. However, there were a few irregular particles. They usually move a little further than other normal particles(if there’s no drag and friction they will keep moving until they die) and their rotational velocity got slowed down later than other normal particles(Same that if there’s no rotational drag, their rotational velocity never gets cleared).
But the most important thing was, all of these irregular particles have shown convulsing on the ground. It’s very weird. Adjusting rest state parameters, friction, drag, collision shape didn’t work out.
I am using UE5.5.4, are there other guys have the same problems? Or do you have any solutions?