Did you try to Generate UV in Dn before putting images?
yes, i did. With same result.
export the UV map and place your textures inside Photoshop or share the files for help
p.s your box has 12 sides and one extra boarder i.e, 6 outside, 6 inside and the edge
brilliant idea! I've switched from decay to fill and now it's looks correct. Thx!