Transaction not yet indexed

28Amp4cmVsumsetT9dJr6RrXv7chBpMDBh9UcsKpN6fFhpFwNc4TNBA9a3eKHzanXRi2kRHN6qDEVhkywtZ5dL8h

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