Quote:In Version 1.13, the generator options for Minecraft changed a bit. I was using the Singleplayer to test the generatorOptions for later use in spigot. In 1.12, when copy&pasting the option into the server.properties, everything works fine. But in 1.13, when copy&pasting the option, it wont work. I used NBTExplorer to identify the problem. You can see the parts in the level.dat files at the images below:
in 1.12, the level.dat created by spigotmc looks he same as the singleplayer world.