Transaction not yet indexed

21UkrCRMD9QMxYV9nJM2RKFTCGj5LgiQTP3DRFq5DVZLa6oLbwRUAG2BUkGDNRrpN6PF3dmookA3CzLdVhFqADvm

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