Icosphere seam Problem

Hi,

i created an Icosphere. But the texture has this strange seam.

I calculate the UV like this:

float theta = (FMath::Atan2(inVector.X, inVector.Z) / PI) / 2.f + 0.5f;

float phi = (FMath::Asin(-inVector.Y) / (PI / 2.f)) / 2.f + 0.5f;

I hope somebody can help :frowning: