In this Unreal Engine 5 Niagara tutorial, we fix the common issue where particle collision doesn’t work when using the Rotate Around Point module. Learn why it happens (position override vs. physics/velocity forces) and discover two practical workflows to get full collision response while keeping circular rotation! 
https://dev.epicgames.com/community/learning/tutorials/or97e/unreal-engine-5-niagara-fixing-collision-issues-with-rotate-around-point