Hello everyone, first of all thanks for your time and help. i’m asking your help because after a week of breaking my brain with NIAGARA nothing works and my patience it’s reaching the limit. 
I’m creating a reentry atmosphere fx with an object (static mesh) and it’s a cinematic video i need to render it in PATH TRACING, the goal is create something like what do you see in the first screenshot attached.
I don’t know what it the best way to make it, with only particles or with 3D fire in niagara.
What do you think??
Problem: Using 3D Niagara fluids or particles emitter, i can’t see them in the viewport how you can see in this 2nd screenshot, i only can see them if i put in a new empty level.
Question: It’s possible to render in path tracing 3d niagara fluids or particles ?
Because if not, i have to find another way to create that fx. I have seen people that have achieved render particles with path tracing, but not it’s my case.
thank you for all the help you can give me guys 
I’m using UE 5.2.1 and CPU 16 cores, 64gb ram and RTX 2080 super.