Transaction not yet indexed

4t21JwCNgnSMXn4MWNffLPGzHEsdLmrnU8fdgiriRJm59iLn79dZZevFUBptRb8QZtrLh4co1KAPRTKtYK7oGL77

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