So in one of survival worlds which had cheets enabled, i was mining and then i broke through in to a massive chunk glitch The world wet from a jungle to a super flat world. All of the chunks we didn’t explore had turend in to a superflat chunk. The same thing happened in the nether. Is the anything I could do about it?, i tried saving all of my buildings to a structure block then loading them in to a different world but that didn’t work.

i don't actually know wicht version of the game it was but it was one of the 1.14.??