Fifo delay queue is delivering messages immediately instead of delaying them about elasticmq HOT 2 OPEN

include classpath("application.conf")

queues {
  main {
    defaultVisibilityTimeout = 10 seconds
    delay = 2 seconds
    receiveMessageWait = 0 seconds
    deadLettersQueue {
      name = "retry"
      maxReceiveCount = 1
    }
  }
  retry {
    defaultVisibilityTimeout = 10 seconds
    delay = 2 seconds
    receiveMessageWait = 0 seconds
  }
  delayed {
    fifo = true
    delay = 10 seconds
    defaultVisibilityTimeout = 10 seconds
    deadLettersQueue {
      name = "retry"
      maxReceiveCount = 3
    }
  }
}

[]
[]
[sqs.Message(queue_url='http://localhost:9324/000000000000/delayed.fifo', receipt_handle='b5edfb66-0106-43b7-beb4-e7ab211a82f0#c732fdcd-aa1c-4d78-af5c-00a7b2878ce1')]