Can someone please help with this spawning issue? I'm trying to get Abyssalcraft Shadow creatures to spawn in the Beneath dimension and can't get it to work. I have Depths Ghouls spawning just fine, but for some reason the Shadow Beasts won't spawn.

[
{
"dimension": 10,
"block": "abyssalcraft:abyore",
"mobs": [
{
"mob": "abyssalcraft:depthsghoul",
"weight": 3,
"groupcountmin": 1,
"groupcountmax": 1
}
]
},
{
"dimension": 10,
"block": "minecraft:stone:3",
"mobs": [
{
"mob": "abyssalcraft:shadowcreature",
"weight": 3,
"groupcountmin": 1,
"groupcountmax": 3
}
]
},
{
"dimension": 10,
"block": "minecraft:stone:1",
"mobs": [
{
"mob": "abyssalcraft:shadowmonster",
"weight": 3,
"groupcountmin": 1,
"groupcountmax": 2
}
]
},
{
"dimension": 10,
"block": "minecraft:stone:5",
"mobs": [
{
"mob": "abyssalcraft:shadowbeast",
"weight": 3,
"groupcountmin": 1,
"groupcountmax": 1
}
]
}
]