Transparent Hair issue

Ok, so I just learned Unreal and I tried to import a character. But for some reason the hair becomes transparent. Is there a way to fix this?

Depends what kind of hair it is.
Where did you get the character from?
Can you show a wireframe screenshot?

Let’s just go with “your material needs to use the correct mip for transparency” here.
nothing else can really cause that type of fuzz.

Open the hair material, set the alpha texture to the mode that allows you to choose the mip bias, and set that bias in a scalar parameter manually (i think in the negative, so like -4 or -5) until it looks correct.

Test at a distance too, since you aren’t disabling the mip, just adjusting at what size it will pick a different size texture to render