Transaction not yet indexed

21NKwsdTZpxiPPoLCc8wnJ3vFvz2WxaaPyGSenYAMtzLj93uh5N4RtGvAgQjv6cdaQkCGoQddEmjgwpRXXxdEcE1

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