Transaction not yet indexed

21MKPbW4thSC7MCBc9qAiE2XHhVUKN1jh9BxLcM5XPCeJg8BYncWWUbg3tPWJ8UdipLHCAH8g4RVc2mJMb1vFw7N

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.