Transaction not yet indexed

21Cf9d5HdFFUZ7mdNew9YAtya4QTZKGAtFMW2uwFAUK8fvkXumXrDC5w3RRgHHPRsVJL2HAN6ZvifcLbVBKPX8rf

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