I'm developing a plugin that will replace all of a server's worlds with files stored in another folder. If I understand correctly, the only to modify these files using a plugin is to first unload the worlds. Unfortunately, I haven't been able to unload these worlds. I've looked at other threads and have tried a multitude of fixes, unloading chunks first, saving the world first, etc. I read that the unloadWorld() method will fail if the world is the main one (index 0). Is there another way to unload the main world? Please note that since I am replacing all of the worlds at the same time, I can kick players but can't teleport them to another world. Thanks!