Creating Custom Hair, Weird White Lines On Mesh In Game.

Hello,  have recently created a new hair for my game using a hair mesh made for The Sims 4 and another mesh from The Legend of Zelda Breath of The Wild, on the part of the hair from Breath of The Wild there are these strange white lines appearing on the edges of the mesh in my game and I don't know how to get rid of them, can somebody tell me how to fix it please?


Here is a picture of the hair in the game.

imgur.com/a/G5CwbKa