Terrain generation creating floating grass

[SteadyOn]

I really don’t know why this is happening and don’t have a repro for it, changing the seed or biome size does not fix it. I can’t give any more repro information than that.

Each time I’m trying to fix this I am clearing all terrain, and checking that it’s gone visually, and then running generation again with the same outcome.

Edit: Even turning snap to voxels off does not fix this.

[SteadyOn]

Okay now I am thoroughly confused. I published to a new place entirely to retry - and now it just generates a plane of lava despite lavascape not being checked.