Minecraft 1.12.2
MM 1.0.4.a
Forge 14.23.5.2808

If I use any biome type for the Goblins in the config they stop spawning. Biomes don't work either. I tried the override option too with no luck.

I've tested with the filch_lizard and that was working ok.

Can you check again with the newest version (1.0.5)? I might know why this did not work properly before. Possibly fixed; otherwise I will continue looking!

Thank you for looking into this.

I have tested with the new version, and it does work now. Thanks again.

Is there any chance you could implement Mob Stages integration? I would love to use Skeleton Warrior in my pack, but I am planning to stage skeletons. I would hate to prevent it to spawn because it is one of my favorite mobs.

I have tested on a new world and suddenly they do not spawn!?
Weird. Nevermind it does work. I will further test Mob Stages with MultiMob...