Sickened_creeper entity uses minecraft's default model but when using preset in entity patch datapack, can't summon or spawn entity via spawn egg. GAME DOES NOT CRASH ONLY DOENS'T LET ME SPAWN SICKENED_CREEPER
Here's the .json code

Console gives error everytime i try to summon/spawn it
https://mclo.gs/d9fN43A - Here's the error
https://mclo.gs/s01hTNY - Here's the whole log (since game launch)

And this is how creeper looks:

WITHERSTORMMOD: witherstormmod-1.18.2-2.0-beta3.jar
EFM VERSION: 18.1.20
FORGE: 40.1.0

It's hard to explain, but it is actually not a creeper type entity even tho it is seemingly a creeper.

java.lang.ClassCastException: class nonamecrackers2.witherstormmod.common.entity.SickenedCreeperEntity cannot be cast to class net.minecraft.world.entity.monster.Creeper