I have a world that is very dear to me and It became corrupted earlier this year. I recovered the world but on loading it up a large chunk of the world was missing. I have tried the F3+A, and MCedit won't load the world because it is a 1.13.2 world and if I try to put it to 1.11 it ruins the world (I made a back up) any ideas?
PS. I created an account on this just to post this so sorry if I have put it into the wrong thread thing.
What version was the world originally in? I would suggest updating it version by version up to 1.13(ex. Your world is 1.11 so you update it to 1.12 then 1.13). I've noticed that when converting from 1.12 server chunks directly to 1.13 a bunch of chunks are deleted so you have to first load all the chunks in 1.12 then convert to 1.13.