code dont work in main pack but works in test pack

[coral brook]

GTCEuStartupEvents.materialModification(event => {
    if (GTMaterials.Flint.hasProperty(PropertyKey.TOOL)) {
        GTMaterials.Flint.removeProperty(PropertyKey.TOOL);
    }
    GTMaterials.Flint.setProperty(PropertyKey.TOOL, 
        ToolProperty.Builder.of(4.0, 4.0, 64, 0,
        [
            GTToolType.SWORD,
            GTToolType.PICKAXE,
            GTToolType.AXE,
            GTToolType.SHOVEL,
            GTToolType.HOE,
            GTToolType.MORTAR

        ]
    ).build());
});```

makes flint tools wood level