Transaction not yet indexed

5b15Cf5TRPYyCpgbSGS1L9MdkNu6nuA8QceJQs3KqNMJuYmFFKw9tAtpUT6ayoZNwsMGukekirNW8C9BNokBU2F1

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