Feral Heart

Hi i have been getting an map problem. I have two maps at the moment. The thing is that the objects on one of the maps desepearde and it was still objects on the other. As i had moved both files to my_objects i did put back the objects on the other map that stoped working and there i got the objects back..... Instead the objects dissepeared on the second map. What should i do to have both maps with objects? IM really sad cause it dosnt work any sugestions?