Transaction not yet indexed

21LKvSD3qR1SpuNwfBKnx1GTG7CaYFUUbmeNRgeEgjvZ44dHT4s6S8RLpSnwUneLkfYZNmsikUYaWeKpTVUecfA3

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