Transaction not yet indexed

5K991tJF3CNmckA75YNoUyAaBYBE6eFkiCpFbzWVA9ugRdfkY1MJHZML5dBni8tXitMZrWxSPeUnGYDHppGdGFX9

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