super flat worlds won't generate structures properly.

minecraft:bedrock,64*minecraft:deepslate,64*minecraft:stone,5*minecraft:dirt,minecraft:grass_block;minecraft:plains;village(size=100 distance=9),biome_1,decoration

won't generate anything BUT villages.

these string past the ";" will also have the same results

village(size=100 distance=9),biome_1,decoration

village(size=100 distance=9),biome_1,decoration