VanillaMob options are not read

Summary

My vanilla mobs file's options are not being read. Mobs are despawning and I can not lead or rename my animals.

Steps to reproduce

1. Spawn a mob or find a mob.
2. Relog. https://pastebin.com/QdFJQaCS - VanillaMobs.yml https://pastebin.com/rr4hjSVG - config.yml.old incase it's needed Paper 1.20.2 (latest) MythicMobs 5.5.1 (I tried on 5.6 & 5.6.1 as well)

The reason I am not updating is 5.6 and onwards makes all mob names capitalized. That is also an issue.

Current behavior

Players can not rename or lead mobs and can not have villagers or mob farms. They all despawn no matter what.

Intended correct behavior

Players should be able to name the specified mobs, lead them, and the certain mobs should not automatically despawn.

Server log file

https://mclo.gs/JOpFjhT