Server with ipv6 not responding

[ghost]

Mup version (mup --version): 1.5.3

Mup config

{
  "servers": {
    "one": {
      "host": "1.2.3.4",
      "username": "ubuntu",
      "pem": "~/.ssh/pem"
    }
  },
  "app": {
    "name": "my-app",
    "path": "../",
    "servers": {
      "one": {}
    },
    "buildOptions": {
      "serverOnly": true
    },
    "env": {
      "ROOT_URL": "https://subdomain.host.com",
      "MONGO_URL": "mongodb://mongodb:27017/my-app",
      "MONGO_OPLOG_URL": "mongodb://mongodb/local",
      "BIND_IP": "::",
      "VIRTUAL_HOST": "subdomain.host.com",
      "HTTPS_METHOD": "redirect",
      "LETSENCRYPT_HOST": "subdomain.host.com",
      "LETSENCRYPT_EMAIL": "email@domain.com",
      "VIRTUAL_PORT": 3000,
      "HTTP_FORWARDED_COUNT": 1
    },
    "docker": {
      "image": "abernix/meteord:node-12-base",
      "stopAppDuringPrepareBundle": true,
      "imagePort": 3000,
      "args": [
        "--link=mongodb:mongodb"
      ]
    },
    "enableUploadProgressBar": true,
    "type": "meteor"
  },
  "mongo": {
    "version": "3.6.4",
    "servers": {
      "one": {}
    },
    "dbName": "artenquiz"
  },
  "proxy": {
    "domains": "subdomain.host.com",
    "ssl": {
      "letsEncryptEmail": "email@domain.com",
      "forceSSL": true
    }
  }
}

no command, just server not responding after some time. For 1 hour up to a day it is running fine strangely.

I suppose it has to do with the IPv6 protocol I am using for the first time, the same configuration runs without errors on another machine on ipv4. Is there any experience for mup with ipv6? I could not find anything on the net so far.

If you need more log files etc then please comment.

Regards