Yay, thanks.
We want to know, because if you tweak, go backwards into a building, go up from it there are places where you can save, go down and actually be in the real place. The 2nd part upwards of almost every place is different, and places like Pokécenters are all the same. (Poffin House)
We were thinking "hey, this is caused by some stuff in the map, possibly tileset data, go ask the Pokécommunity D/P/Pt hackers.