Error Hair UE4

Hi guys, I’m trying to find something about what’s been going on in my character’s hair since last week … I took the LT_belica material from paragon and just added my maps in each place (I did it because I don’t know how to handle materials very well ) it is strange, and in parts of the hair are openings that were not meant to be, the hair strand is very strange. Does anyone know what can it be?