Failed to decode packet 'clientbound/minecraft:cookie_request'

[SinanAkkoyun]

This happens when trying to run the instant connect example on version 1.21.4 (other versions possibly too)

When logging toClient and toServer packets, this is all I get:

{
  "name": "login_acknowledged",
  "data": {}
}{
  "name": "custom_payload",
  "data": {
    "channel": "minecraft:brand",
    "data": {
      "type": "Buffer",
      "data": [
        // some data
      ]
    }
  }
}{
  "name": "settings",
  "data": {
    "locale": "en_us",
    "viewDistance": 32,
    "chatFlags": 0,
    "chatColors": true,
    "skinParts": 127,
    "mainHand": 1,
    "enableTextFiltering": true,
    "enableServerListing": true
  }
}

[HumanDuck23]

Were you able to solve this issue somehow? Facing the same problem...