Transaction not yet indexed

21f8nknWGAedYGiGcUdM5ezvRWfUDpgbBDNXHuGi8vY3W9qjVCpC9tPnY6nVePfXfao2xrSriMxgRjV4c2iDwn69

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