Affects Version/s: 21w08b, 21w10a
Fix Version/s: 21w11a
minecraft:grass, minecraft:flower_pot, carpets, snow and possibly more blocks generate on the wrong y level if min_y is below 0. (y of wrong level blocks = amount of layers) Basically forgets there are negative y levels.
- Go to the flat world preset menu
- Fill in minecraft:bedrock,2*minecraft:dirt,minecraft:grass_block,minecraft:grass (you can replace grass with flower_pot or white_carpet for the same effect)
- Generate the world
The grass generated at y = 4
Using the official 21w08b mojmaps:
These are hardcoded to the old limit, multiple things are calculated with that number, including the level height of the blocks like carpets, grass and snow etc(blocks that depend on blocks below it, flower_pot is a weird exception). Best solution is unhardcoding these.