Custom Creature Won't Spawn

Hello. Fairly new to modding but have gotten the gist of making new creatures. One problem I am facing however is my new custom creature will not spawn in game naturally or with commands. However, it will spawn in with commands in the Dev Kit. I have put where I want it to spawn in the PrimalGameData under Additional Spawns and have used a copy of the Quetz spawn too and that didnt work either. I don’t know what I’m doing wrong but according to every tutorial and forum I’m doing it right yet nothing is spawning. Any help would be greatly appreciated. Thank you