imoosey

Playing last night my world crashed after placing a red lined item case from bibliocraft onto a furniture mod table. When I logged back into my account and clicked single player the world was gone. I have a backup saved to my desktop and when I go into the saves folder in attack of the bteam it says my world is still there. I added my backup to the saves folder anyway and then reopened the client but no worlds are showing up. i have tried redownloading the entire technic client and i have reset the bteam pack itself. my question is how do i properly add a world back to my "saves" folder. I'm on a mac. Thanks.