Transaction not yet indexed

21Ppf4UfqwSVppPJo9io6MFCBMsQW7pnuCWZbS4TPu5ymShpTBzwyVEhBfzUn1C3gB5U31tHAGjsFrFdTQpR9uuH

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