Transaction not yet indexed

MDkYvR8TrNcdkR8PpZEUFDgjQr2QQun7uCYhBnNShX7ynjhbq88GnZaS4Mtd8BGeQMsKweXzfC92P4QPVPMftXR

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