MC-267207Custom dimension definitions no longer allow a specified seed
Since 1.19, dimension seeds and biome seeds can't be set in custom dimension definitions, for example:
{
"type": "minecraft:overworld",
"generator": {
"type": "minecraft:noise",
"seed": 3720723036382728818,
"settings": "minecraft:overworld",
"biome_source": {
"type": "minecraft:multi_noise",
"preset": "minecraft:overworld"
}
}
}
