Transaction not yet indexed

21C5k2JQjdpFBMJmw3ceb7qJfWEhtF52kkFeng3NgUnu8Lnt1GSf7b6aQPYFhS2pouPVhCNmjLvT2aRn7LpEg6Kv

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