Transaction not yet indexed

21D6QVQvwuCkxfgRgGMLW31EuEuoBzaLUMZmSGfkHpJeV7YKMPRm9oP7cJtWjTAUySJDAi4BcnJYYuGQh4ZVXeH8

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