issue with nested objects

[isaacfink]

hi I am adding an array with multiple nested object to sort but in the event on sort I get back a couple of undefined objects

this is my list i am adding to the sortable list component

{
    "edges": [
        {
            "node": {
                "id": "Y2F0ZWdvcnlfdHlwZTo1Mg==",
                "name": "lunch",
                "pk": 52,
                "__typename": "category_type"
            },
            "__typename": "category_typeEdge"
        },
        {
            "node": {
                "id": "Y2F0ZWdvcnlfdHlwZTo1Mw==",
                "name": "gifts changed",
                "pk": 53,
                "__typename": "category_type"
            },
            "__typename": "category_typeEdge"
        }
    ],
    "__typename": "category_typeConnection"
}

(It's from a graphql api)
and when I sort the list I get this response

[
    {
        "node": {
            "id": "Y2F0ZWdvcnlfdHlwZTo1Mg==",
            "name": "lunch",
            "pk": 52,
            "__typename": "category_type"
        },
        "__typename": "category_typeEdge"
    },
    null
]

this is the event from sort event