"Data read, but end of buffer not reached [64]" when using structures

[shirecoding]

Im not sure if this is the right way, but when i add the structure methods i get an error

let packr = new Packr({
    useRecords: true,
    // Enable saving/restoring structures
    getStructures() {
        return this.structures || [];
    },
    saveStructures(structures) {
        this.structures = structures;
    },
});

or alternatively

let packr = new Packr({
    useRecords: true,
    structures: [["event", "type", "message"]], // my data is a list of objects
});

231 |                   restoreStructures()
232 |           clearSource()
233 |           if (error instanceof RangeError || error.message.startsWith('Unexpected end of buffer') || position > srcEnd) {
234 |                   error.incomplete = true
235 |           }
236 |           throw error
              ^
error: Data read, but end of buffer not reached [64]
      at checkedRead (/Users/benjaminhon/Developer/christmas/christmas/app/node_modules/msgpackr/unpack.js:236:9)

I am on version: "msgpackr": "^1.11.2",

It works if i remove it. But what i want to acheive is having the records shared across multiple calls to packr.pack(data)

Im not sure why but i suspect that structures only work with dicts and not list of dicts?