Transaction not yet indexed

5b1MMErHB3RtgQQn6Exb2fPqDShDBMpjY5LztmZBQFNcv6jPcvyJTuMQ3a4ub9Pyqw8mg7C5ddfyq6ZAyTnokX88

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