I dont actually understand what you mean but try these.
1: Go into feral heart game (ingame - Feralheart>>Tools>>Object Maker>>) and type in the exact thing and make sure its ".mesh - .material or .mat"
2: Sometimes you have to put the objects In "C:/>>FeralHeart>>Media>>Materials" and "C:/>>FeralHeart>>Media>>Models"
3: Did you get a .object file? you put that file in "C:/>>FeralHeart>>Media>>objects" and then the rest In "C:/>>FeralHeart>>Media>>Objects>>My_objects"
Hope you found this useful if not ill get back to you, or try explain this issue a little more