The problem is that every time I pass an animal or mob through the nether portal it disappears immediately and I don't know why that happens and after 10 days in the game it appears again but in a different part of the world and this is already affecting me that I have a farm of villagers in my world and the villagers are directed to the other and when I want to get them out I can't because they disappear and I don't know where they are going. Please fix this bug and if it is my world please let me know