Transaction not yet indexed

5s21NCXnYpKz4Cyc8tQPNv39bWsTNqbCy294B6mmNbF8tsbSfPGutc8ou6Z6ctoYSDetMKgVmnuDzGi1gt2tKpRP

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