SpriteUV2 A Texture / Sprite / UV Map packer that you will love

Hi! Can this program deal with lightmap overlaps errors in UE4? I have this problem and from what I understood the packing program must know UE4 lightmap resolution and pack accordingly or something like that?.. It is such a pain, I am not looking in all means for best tight packing, rather error free lightmap once and for all.