I was creating a RPing map for my friend and I to well, RP in, and i saved it and played FH for a bit. When I got back on to edit it, nothing was there!!!! There were crystals and caves and water falls, and all of my hard work got deleted! I spent 2 days working on it and not even half of the map was finished! I didn't put anything inapropriate in it, and i saved it. I promise I saved it. Please tell me what to do to fix it!