It has appeared to my friends and I, when playing MC PE on survival or creative that copying maps is impossible. After copying the map, when we go play on the map, it appears to copy only a tiny slice of the buildings on the world, copying the seed only and nothing that has been built on the map. This bug has been like this since version 0.6.0 I think. As you can understand this has been frustrating and stressful when my friends and I wish to trade maps. Please fix this bug or glitch as it will make MC PE much more enjoyable. Thanks.