Transaction not yet indexed

421FKJT6PTvaWJwaxcvTFVWTAM8DGtcyB9wcmegf8XQPWcZT6YQDfMuWDcjLSaBCDHaemZGYNx6pJiNUrrmE4SP7

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