Transaction not yet indexed

21Z28UtCpaaZV96HFsQCrsSyfek3GoakKhhyp7HK5FB9MJFXg2ZMqvb9KRa2SPNpu5wvf8LFTg72iNprFKoFZsbo

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