Transaction not yet indexed

21Zkm5qUGHjyywMRTYxuPD5v8eyhJ3eNWGfoXH9epCeijPPcBm2EJ6KbE15ZFKnfzEBBgPSBxoJtdLMNNiLhdAzS

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