[Bug]: No Roost, dragon cave, myrmex ... Everything not spawning besides the villages with the ice and fire villager, and the mausoleum

[Dgonvil]

What happened?

No mods besides ice and fire , optifine

latest.log

and xaeros, tried different versions and also touching the ice and fire cfs file to increase the chances, but they dont appear
To check I put the spawn value of death worm on 9000 and the cockatrice at 10 and neither of them respawn
Tried this in single player world

Minecraft Version

1.16(CRASHES ONLY)

Ice and Fire version

2.1.1.2

Citadel version

1.8.1

Relevant log output

Other Information

• I am using other mods besides Ice and Fire
• I have attached a log file from the session that I have experienced this issue