Transaction not yet indexed

621Mkt3f88P4h2F11aCJPYZYTXJA4A75QfvXdvbCDMbTHxEg3HA6bLbdSAebSVM2bfPRbSNDx9goio1w6rVb9Y5Z

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