After playing with various world generation settings I successfully generated Vine Vault and Terracotta Tombs sometimes at high Y coordinates. But unfortunately they lack some features or structures as seen below.
I looked at terracotta_tombs.yml and cave_jungle.yml but couldn't figure out what to change
I know these biomes are not intended to be generated like this. But I'm just wondering what and where has to be changed to get this to work.
Thank you :)
Images (look at the Y coordinate)



