Transaction not yet indexed

Am4c9oAsBkXDbBM1tDaX6YbRmPfR3Z7g6CT8C5ynLRtMsChu1fDFs5cm5LALo2XMxjb13tiaEPy9iWN3WZxQBFn

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