Transaction not yet indexed

AmLgX5N6vPueGrcYYqsH2gbRcaQmdpSSUpPeGdUFYDkLM5fWtDRcFaiySPxAcimGmgeYk6EdtKSeEiWSCtT1aCm

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