I have been using Niagara ( Groom Asset system ) in 4.24.3 , and it was working properly,
When I downloaded 4.25.1 lately I tried to add the Niagara system to my hair with no results ,
It had no effect whatsoever on the hair .
Tried a new clean scene and importing my data from scratch ,
Also tried loading an old ( already setup ) scene from 4.24.3 , both didn’t work .