Importing from blender doesn't scale certain materials

As in the title, i can’t seem to export my materials on my meshes from blender to UE4 well.
Here is what I see in blender:

as you see the center texture is the size that i want it in the right position
But now we export it from blender to UE4 (using FBX):

Now the darker texture in the middle is not scales right but the outer “rim” is as it was in blender.

Any help is appreciated,
thank you.