First off I was in the nether in survival mode about to die. In attempt to save my progress I quickly hit exit and save. When I went to reload the world with it now on peaceful to not die it would get stuck on the end of the bar of the loading screen into world screen. It is not freezing my whole game just won't load. So then I tried to mess around and go into different gamemodes to get it to work. I copied the world and went into creative and it loads. I tried the same with adventure mode and it didn't load again. This only occurs when in creative mode. I don't want to go into creative on my main( non-copied world) to not lose my future achievements. I tried resetting my xbox and everything over and over again but nothing works.