Weird looking textures imported in UE

Hello, I’ve been struggling a lot and i can’t find a solution for this,

I have a xtremely weird problem. My Metallic, AO and Roughness textures look really bad with lot of artifact lines in editor, not even close to the original texture. I’ve been trying with compression settings, mipmaps and everything. Even sometimes load as pure black randomly when reimporting. So weird. Diffuse color look good.

I attach images to show it.

Please anybody could give me the solution for this?

Thank you so much