Transaction not yet indexed

21NGmZkBJGWdkpQfGUv6HkuEhCpc72c4RpwnRJVGyYanPVTzaU7ZtYcbdX7AuvJH1GTAUKKPrLkB3PwVY7v2uFfc

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