Ability to add golems via datapacks not working on the pojav launcher

[GoldenDragonHS]

The file shows the exact configuration used.
The game gives no errors, but the golem is either invisible or black and purple despite using correct references.
Spawning the golem works perfectly well but not its textures.

crystal_matrix_golem.json

[GoldenDragonHS]

Ok so since I couldn't share my file I'll describe the issue in text

I'm currently using the following structure in my datapack

Datapacks ➙

crystal_matrix_golem/
│
├── assets
│ └── golems
│ └── textures
│ └── entity
│ └── golem
│ └── crystal_matrix_golem.png
├── data
│ └── golems
│ └── golems
│ └── golem
│ │ └── crystal_matrix_golem.json
│ │
│ │
│ └── model
│ └── crystal_matrix_golem.json
│
└── pack.mcmeta

crystal_matrix_golem.png is obviously the golem image

Here's the data/golem file

{
"attributes": {
"health": 25.0,
"attack": 9.0,
"speed": 0.28,
"knockback_resistance": 0.2
},
"blocks": {
"all": "minecraft:grass_block"
},
"repair_items": {
"minecraft:grass_block": 0.5,
"#forge:ingots/brick": 0.5
},
"model": "#golems:crystal_matrix_golem",
"brain": "golems:empty"
}

The golem spawns =‎ seems to work

Here's the model file

{
"layers": [
{
"texture": "#golems:crystal_matrix_golem"
},
{
"texture": "#golems:eyes"
}
]
}

The mcmeta file is the normal

{
"pack": {
"description": "Custom data for My Vanilla Plus modpack",
"pack_format": 15
}
}

[KiriCattus]

Did you ever get this working? Did you give it a recipe and put everything in the right place?