Transaction not yet indexed

21CB5KRFfApRQWWUVEpKeuAzsa199t1ooQrkTuC1UJ4FJHQbdL7Kv1eAzyKBnvxFwPskYUuciMg2d2yVuhVrUULg

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