Azalea Trees generate skewed, submerged, and suspended

When using the new "Lush Caves" custom generation, the azalea trees have very buggy generation. Most trees have leaves that aren't centered on the trunk and are sometimes not attached, trees can generate in water, even several blocks deep in lakes, and some trees generate without a trunk connecting to the ground.

 

Seed for these screenshots is 2965128400465547633