As is the case, it sometimes happens that if the world borders from the over world and other dimensions are not the same it can cause issues. In this case, I respectfully request that the world border in all dimension WITH a world border be set to match, or extend past, what the over world border is set to, which I believe is 5k square? Please set the following world borders (all Square) Overworld : Already set to 5k square End : 1K Nether : 6k 1k -> 2K Twilight Forest 6K DeepDark 5K Farm World : 5k Aroma Mining World : 5k
Please check this thread: Open - World Borders- Dimensions. | MineYourMind Community (Still got no answer to my suggestion)