The Bug

The overall height of the lush cave biome domain’s generation height in the amplified world has been increased, resulting in the lush caves are not correctly generated.

Leads to the following result:

1. Lush cave features can be generated on the surface outside the cave.
   
   
2. Because the generated height is too high, the lush cave is more often submerged by aquifers, resulting in the lush cave can't generate features.
   

Steps to reproduce

seed: -4426601857391425716 (amplified)
pos: 1824 49 501