Transaction not yet indexed

mpX4C9JxFuY8s4AwGXbVdW8JGBrt5mDi4AJXUtnuvBCk8NA68rdeQtfJQYebCr381GAC4LvAhJXHmctiumYudz1

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