Transaction not yet indexed

21mXjpduMQoDbSoF7AFE9RpcJMhRCtZPzU5wZPYf4t44nd842LVKuPdYQvdaSVUkWM6gs5yyJBj3xJjYxRMa5KbN

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