Transaction not yet indexed

521AkhFRH3kWyGiyMoXAcGkAMTW9Su5opmB3RJSeudbNSyH4inAwEErdhGjArs4dLw22dBGF8M6rWv78vgTWNPdu

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