Problem with disabling vanilla mobs [MythicMobs]

Summary

RandomSpawn stops working when I activate the RandomSpawning option:

 DisableVanillaSpawns: true

Steps to reproduce

MythicMobs custom mobs don't appear when I activate the option to disable vanilla spawners.

My Config.yml: https://pastebin.com/1ck0qmwQ My Test Mob: https://pastebin.com/KYRubbDc

Current behavior

The mobs stop appearing, even if they are generated. I see that they are generated by the MythicMobs debug, but do not appear around the character.

Intended correct behavior

I wanted to disable the vanilla mobs and leave only my MythicMobs mobs...

Server log file

https://pastebin.com/Q2a58f78

Debug log snippet

https://pastebin.com/cM0W1KAy