Transaction not yet indexed

PLb3CfPi6NmqU9DhmB5UQkErQjTf3K1atzE7H3yvCK5Wva3LfMj1fhW1MYFX2zkH1Nd1mtaA5TjtoFcuYSsd8ki

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