Transaction not yet indexed

MLB31ZS2AaEcNdYu1o6mYDknwh9WssiMgdLAMJyQYcYTHUa4NqRUBsyhCJNdPcYkcfuTHZt997cDrNbokY5dutq

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