Transaction not yet indexed

5KX21mh97zfciLsXkNrLmPBa4fQRAEwsv9rf5z6vVRYWMSXPDRXVytVZS3mE8D43N4V3eeqBa7xcHXAyGarfLnP1

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