When you enter Minecraft online and then play the world at offline the game doesn't crash but if you open Minecraft at offline and open the world at offline we can play the world for few minutes then it suddenly crashes no matter how many times i have tested this i get the same result it keeps crashing if you enter the game offline and play the world offline its fine when you open Minecraft online and play the world at offline this crash also caused t all my villagers who are trapped in house with beds and had professions and i also traded with each and every villager but they despawned a soon as the crash happened