Due to the way the sandbox maps are presented to the user, there are a maximum number of tiles (20) that can be used to display maps. Having more than this number of maps installed will result in the remainder being inaccessible through normal means as there is no attempt to create a tile for them in the main menu.
Due to the way the sandbox maps are presented to the user, there are a maximum number of tiles (20) that can be used to display maps. Having more than this number of maps installed will result in the remainder being inaccessible through normal means as there is no attempt to create a tile for them in the main menu.