Wrong number of RocketChat Instances in 6.x.x

Description:

I have self-hosted docker-compose RocketChat behind reverse-proxy which I updated from 5.4.10 > 6.3.7 > 6.4.5
On version 6.x.x my push notifications stopped working and I noticed the message You are operating multiple instances without an active enterprise license - some features may not behave as designed.
In the Instances pop-up, I see two instances, mine and some weird one that has Updated in 2257 (year).
I guess the weird instance is the reason why my push notifications stopped working, but I can't remove it.

I would greatly appreciate help in removing the weird instance and making push notifications back operational.

P.S. During the update I had to reset my previous workspace because the password from the cloud account was lost.
So I created a new cloud account and reset the workplace using the following manual https://handbook.rocket.chat/departments-and-operations/support/support-ticket-faq/how-to-clear-mongodb-to-re-activate-your-workspace

Steps to reproduce:

1. Go to Administration > Workspace > Workspace tab
2. Click on the Instances bottom bottom-left

Expected behavior:

The pop-up shows only one instance

Actual behavior:

The pop-up shows 2 instances

Server Setup Information:

• Version of Rocket.Chat Server: 6.4.5
• Operating System: Ubuntu 22.04
• Deployment Method: docker
• Number of Running Instances: 1
• DB Replicaset Oplog: oplog Enabled
• NodeJS Version: v14.21.3
• MongoDB Version: 6.0.11 / wiredTiger

Client Setup Information

• Desktop App or Browser Version: Chrome 119.0.6045.159
• Operating System:- Ubuntu 22.04

Additional context

I get this data from instances.get API when I open Instances pop-up

{
    "instances": [
        {
            "currentStatus": {
                "connected": false
            },
            "instanceRecord": {
                "_id": "HswFZcCA2kHpzGGK2",
                "_createdAt": "2021-07-12T08:46:07.113Z",
                "_updatedAt": "2257-02-26T09:53:32.201Z",
                "extraInformation": {
                    "host": "undefined",
                    "port": "3001",
                    "os": {
                        "type": "Linux",
                        "platform": "linux",
                        "arch": "x64",
                        "release": "4.15.0-34-generic",
                        "uptime": 84,
                        "loadavg": [
                            0.94580078125,
                            0.2568359375,
                            0.0869140625
                        ],
                        "totalmem": 8164683776,
                        "freemem": 5449244672,
                        "cpus": 4
                    },
                    "nodeVersion": "v12.18.4"
                },
                "name": "rocket.chat",
                "pid": 9
            },
            "broadcastAuth": true
        },
        {
            "address": "localhost",
            "currentStatus": {
                "connected": true,
                "lastHeartbeatTime": 11,
                "local": true
            },
            "instanceRecord": {
                "_id": "583dc48a-ec86-4f5f-a82d-bdc4d5b3f42b",
                "_createdAt": "2023-11-20T00:52:18.297Z",
                "_updatedAt": "2023-11-20T01:37:58.390Z",
                "extraInformation": {
                    "host": "localhost",
                    "port": "49500",
                    "tcpPort": 43469,
                    "os": {
                        "type": "Linux",
                        "platform": "linux",
                        "arch": "x64",
                        "release": "5.15.0-78-generic",
                        "uptime": 9214062.4,
                        "loadavg": [
                            0.35,
                            0.18,
                            0.18
                        ],
                        "totalmem": 8123834368,
                        "freemem": 1068396544,
                        "cpus": 4
                    },
                    "nodeVersion": "v14.21.3",
                    "conns": 1
                },
                "name": "rocket.chat",
                "pid": 9
            },
            "broadcastAuth": true
        }
    ],
    "success": true
}

My docker-compose config is the following:

version: '3'

x-rocketchat-port: &port 49500

services:
  rocketchat:
    image: rocketchat/rocket.chat:6.4.5
    command: >
      bash -c
        "for i in `seq 1 30`; do
          node main.js &&
          s=$$? && break || s=$$?;
          echo \"Tried $$i times. Waiting 5 secs...\";
          sleep 5;
        done; (exit $$s)"
    restart: unless-stopped
    environment:
      PORT: *port
      ROOT_URL: https://chat.act.software/
      MONGO_URL: mongodb://mongo:27017/rocketchat?replicaSet=rs0&directConnection=true
      MONGO_OPLOG_URL: mongodb://mongo:27017/local?replicaSet=rs0&directConnection=true
      VIRTUAL_HOST: my.domain
      VIRTUAL_PORT: *port
      LETSENCRYPT_HOST: my.domain
      LETSENCRYPT_EMAIL: info@my.domain
    depends_on:
      - mongo
    expose:
      - *port
    networks:
      - default
      - acme

  mongo:
    image: mongo:6.0
    restart: unless-stopped
    expose:
      - 27017
    volumes:
     - ./data/db:/data/db
    command: mongod --oplogSize 128 --replSet rs0

  mongo-init-replica:
    image: mongo:6.0
    command: >
      bash -c
        "for i in `seq 1 30`; do
          mongosh mongo/rocketchat --eval \"
            rs.initiate({
              _id: 'rs0',
              members: [ { _id: 0, host: 'localhost:27017' } ]})\" &&
          s=$$? && break || s=$$?;
          echo \"Tried $$i times. Waiting 5 secs...\";
          sleep 5;
        done; (exit $$s)"
    depends_on:
      - mongo

  hubot:
    image: rocketchat/hubot-rocketchat:v1.0.11
    restart: unless-stopped
    environment:
      - ROCKETCHAT_URL=rocketchat:49500
      - ROCKETCHAT_ROOM=GENERAL
      - ROCKETCHAT_USER=rocket.cat
      - ROCKETCHAT_PASSWORD=superpassword
      - BOT_NAME=RocketCat
      - EXTERNAL_SCRIPTS=hubot-help,hubot-seen,hubot-links,hubot-diagnostics
    depends_on:
      - rocketchat
    volumes:
      - ./scripts:/home/hubot/scripts
    ports:
      - 3002:8080

networks:
  default:
  acme:
    external: true

Relevant logs:

No related logs are present

Start with the Administration > Workspace > Instances view and the instances.get API response described in the report, then trace how instance records and heartbeats are handled. Reproduce the two-instance response with the stale 2257 timestamp and verify that the Instances view shows only the active instance and push notifications operate normally.