CustomModeldata

    "display":
    {
        "icon":
        {
            "item": "minecraft:iron_ingot",
            "nbt": "{CustomModelData:3}"
        },
        "title":
        {
            "text": "Beyond Netherite",
            "color": "dark_purple",
            "bold": true
        },
        "description":
        {
            "text": "Better than netherite",
            "color": "dark_purple",
            "bold": true
        },
        "frame": "goal",
        "show_toast": true,
        "anounce_to_chat": true,
        "hiden": true,
        "background": "minecraft:textures/block/block_of_amethyst.png"
    
    },
    "criteria":
    {
        "enderite_get":
        {
            "trigger": "minecraft:inventory_changed",
            "conditions":
            {
                "items":
                {
                    "items": "minecraft:iron_ingot",
                    "nbt": "{CustomModelData:3}"

                }
            }
        }
    },
    "requirements":
    [
        ["enderite_get"]
    ]
}``` so it doasnt work. Let me explain:

basicly i want to make it so if a item has a certain custom model data and u get the advancement but it doasnt work!
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