Transaction not yet indexed

1NunNA5YnUF5KPK2Zi3saJmoJZmjT9gZHA9C9LkMK9xYYb3qbKoXTNBcRthVEtvWCzuTSqMNbeKxZ2NjRFPRSRt

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