Transaction not yet indexed

5991EKpBbcMZe13f73zq1RCJyadvqrcmSF3GsKmJkpTiTwfH3vn5LVf3CPsYXfHfWuz7qke7VJR1CDTUmeqnMvBd

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