So i wanted to mod my survival world just so i had a few new things(this was before creative update) i added stone brick and stuff like that that wasnt in the game yet. i was new to mioding so i didnt make a back up and i try to load the save and it is the loading screen with no loading bar... i was wandering if someone, anyone could fix my save somehow. please reply!! Thanks!
I don't think it can be fixed at this point. I think the tool is now patched and without a backup I don't think it can be recovered.