Kibana "error fetching fields" forbidden

Please add the kibana_user role to the user, so that it reads:

{
  "test" : {
    "username" : "test",
    "roles" : [
      "User",
      "kibana_user"
    ],
    "full_name" : "Test",
    "email" : "",
    "metadata" : { },
    "enabled" : true
  }
}