Feral Heart

I need some help with a problem....always when I make a map this horrible thing happens:I go into the game then enter the map.It works...I go back to upgrade it....I look againg in the game at it...then I upgrade it againg....and now the map disappeared....I tried to move all the map's folders into exports, but it still doesn't work, where I can see the map is just in the Map Maker...please help me.