Transaction not yet indexed

Cu3n6uYTo5vstZ1WNdfSnq2ugjSqdWEgyiAiYd4zep5X8PALNZiiCLGMjn62fRPjRaYKLzJxpcXtMn8qWS96ut7

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