I have the same issue but for a different reason. I was playing like normal on October 12 when i got kicked out of the game because "world size to big" it then tried to upload to cloud which failed. After trying to open the world again the game crashed. Now the world is corrupted and Minecraft crashes everytime I try to open my almost 4 year old survival world. Me and my friends put so much effort and time into it and now it's all gone...
Edit: the copy's of the world are also corrupted for the same reason. It shows this pink/black loading screen error shortly before crashing the game
I have the same issue but for a different reason. I was playing like normal on October 12 when i got kicked out of the game because "world size to big" it then tried to upload to cloud which failed. After trying to open the world again the game crashed. Now the world is corrupted and Minecraft crashes everytime I try to open my almost 4 year old survival world. Me and my friends put so much effort and time into it and now it's all gone...
Edit: the copy's of the world are also corrupted for the same reason. It shows this pink/black loading screen error shortly before crashing the game