Seam between the body and the head Metahuman after import textures

Hello everybody!
After changing the texture of the body, the seam between the body and the head becomes visible. Any thoughts on how to get rid of it?

It seems that UE itself changes the roughness of the body and head, but no matter how I tweaked the parameters of the Head chest and the Body roughness, I couldn’t remove the seam.

However, Blender does not have this seam: