TFS 1.X+ Silver necklace does not work in downgraded tfs

[Felipe93]

this is strange but silver necklace is not working at all

    <item id="2170" article="a" name="silver amulet">
        <attribute key="weight" value="500"/>
        <attribute key="slotType" value="necklace"/>
        <attribute key="charges" value="200"/>
        <attribute key="showcharges" value="1"/>
        <attribute key="absorbPercentEarth" value="10"/>
    </item>

    <movevent event="Equip" itemid="2170" slot="necklace" function="onEquipItem"/>
    <movevent event="DeEquip" itemid="2170" slot="necklace" function="onDeEquipItem"/>

the strange part is that the dragon necklace does works, should i register this item elsewhere?