When resizing a 3D shape that uses images for its faces, the face images are always anchored to the same corner on every side of the shape.
Because of this it's impossible to tile 3D shapes seamlessly unless they're the exact size of their textures, because as soon as you reduce the size of a 3d shape it also shifts the position of its face images in ways that will often cause texture tiling issues.
Is there any way to control the anchor/origin point for the images that are used as face images for 3D shapes?