After going to the nether, I decided to take a break so I shut off my phone while in the nether. When I came back to Minecraft to play on my world, it wouldn’t let me because it always gets stuck on the generating world screen. It doesn’t freeze because the Minecraft tips keep scrolling by but my world still wont load, the bar gets fully green but then gets stuck. This doesn’t affect any of my other worlds except this one. I updated Minecraft the day this happened to 1.12. I spent weeks with my friend on this world so it would really help me out if somebody could tell me how to fix this problem. Thanks.