Transaction not yet indexed

MefRKzcemZ2vKkBgsKsXajfgug2UA9s3Rm9xFyD9QER4F6umDJdbVcaWahh7dWPY17hTCNUhcJeUCD1EMG8qe9w

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