Transaction not yet indexed

21x6MknyGY6L2MWFdfDAo3e9xKvrBf56ciAa5xC4Ecg2CZF9fKMLPNSHvcFQyUwLLke3CCXRnDiLTwMEijAo9CSM

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