okay, idk how this works but using an old version of minecraft launcher I finally fix this shit dude. It's probably a bug of memory or cache in java that clones the world when you create this right after delete the old one

wait for me on top 10 ssg

just joking

I use 11+ normal. the 8 short or 9+ makes the dragon freezes when I go a little away from him it annoys me

I'm doing some tests like playing in other versions or something like that but no result

yeah man, it happens as well when i just create a new world with the same seed

I create the world normally, I do the run and let's suppose that I made a mistake ok, delete the world and create it again right? no it just creates the world again with the things that I did on the last run. It's bizarre

but it isn't always, sometimes it creates normally, but it often creates the world with the changes that I did

There's anyone on internet talking about this (I didn't find)

(and sorry, my english is bad, i'm doing my best xD)

it happens everytime, everytime when i create or recreate the world it comes cloned.

example: I made a run and made a mistake, i recreate the world and it comes exactly how the another one, with blocks broken, trees, etc someone knows how to fix it?

EDIT: I use optifine and I run on 1.8.9 SSG