Transaction not yet indexed

5zcuXS2zAyAJFQuSfKw1XAEz99Rb9WZSLmJRASkdPyP2vKThaQEG36eBfqBn7T34QHS4vZnqiRqUSBsEGPkz1519

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