Transaction not yet indexed

5u521aM6AUT9EAvbTYUtZ9vJLBJe5aK5Fd5ATXBR6Eheyp2o2zdBkav2vYn5zc7F1kvx1kW4vRu3qa6UfWBZJb1V

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