Transaction not yet indexed

MEfn63swi7R6e3vLhe4LbCzScGG5JrXS3djD3LVbAEH4rRqfa5tw19eRLqadV1L8AkxPkfjxP3hVRmMrrn8fHM2

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