Transaction not yet indexed

5b21QbXnj9XFo4FTb3SNWaAWY71TVmGbruoFPJhGZXbkvAiAX9VmF7mhVDzRpxdG7GmWYY5Y9xe5v6hJ4AHFb9cD

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