Transaction not yet indexed

AmkAY5vwFSjaJTFZcf8rtMK2SzMXd6W4ZKM5in3AB5afASAAwSrqbUnkawTEekcf2Eej6mvaonFkiTEPewnCGQs

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