Transaction not yet indexed

21ykmmxQTMQJCUTr9dLGmBcTezw74aDktsf3Ymh34QPphuyWHQW1AEn2nbnoECTPKEyGK2ULffnRAS1WJFiZ6KAD

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