[MC-133512] Superflat world generation error

When creating a world in superflat mode with a preset seed, layers are incorrect.

Example:
with seed 3;minecraft:bedrock,230*minecraft:stone,5*minecraft:dirt,minecraft:grass;1;
Minecraft creates a world with 1 grass (top), 2 dirt, 1 bedrock (bottom) (so in Classic Flat).

Comments 4

qwerty23495 2018-07-14T12:44:13Z

What's the '3' at the beginning for?

user-f2760 2018-07-14T12:47:33Z

Superflat version indicator, which has been removed in 1.13.

Dany Musica 2018-07-14T12:47:42Z

I created that seed using a tool... I don't know.

Is that number the problem? Maybe from 1.13 we don't need it.

user-f2760 2018-07-14T13:04:44Z

The version number got removed, you need to provide an up-to-date generator string; the tool you used outputs an 1.12 and earlier string.