Transaction not yet indexed

Nk8pL9jjHYjDQYvPuCfSZkKzMzfheUydQgbgzetQZjcYqtsjx6AKP6AxN4Q3nRucNGgUyZEtByVKUDrQZmQMJvQ

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