Texture distance Issue How Do I fix

I’m brand new when it comes to texturing in UE4 if this lovely community can point me in the right direction I be grateful the issue is that from the image below you can see the dark black lines I need to know how to fix it the object is a mesh of different tiles square mesh combined overlap each offer if they is a video that talks about this please let me know

Looks like z-fighting, best solution is to just not have meshes overlap so closely