after loading up minecraft i see my world that i use everyday doesn't say if it's in survival or creative under the name of world and the picture is grey! i copy the world in case after i try to play the world breaks, but while loading it got stuck on copying world 40%. it then said my world might be corrupted (shown in picture attached). i then restart minecraft and my xbox and when i come on it shows my original world grey again and the MB size doubled! (shown in picture again). this is the world i use everyday and never had any issue with it before or played in beta. i never created a backup file because i thought this would've never happened but now i don't know what to do.