Transaction not yet indexed

MEfFU6aPzJ1gbTcaqkDfWEzUeJ3wwTL55KASzRB9vHcKPBMazFobwdsqwTCFiv7mDV7EjVgdAxh7g4q7yCPCcd4

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