Transaction not yet indexed

21C7ackVZKPY6ujmH7VT9P1op7K76YFn44SHPFARSJqp3ijXS1HPczLp2UfNhbqpKdXiyExTEJyKrdEDN7kvrMs8

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