Transaction not yet indexed

Me8cJx9eZkXpWm9LkF5PrJ3wLrHqVNc1GQADoTirwVsncEV9fav7pHuLfpppg1J3scChwcnaaDE1hcQ8ofM28gE

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