Transaction not yet indexed

AB19CmPnZc3fWqtgSTa1QGrCg8q2t2LBYrUNJNoJoKAtGahaKNF3BpvSHdhqaKdgo2PH5m6tNwigb2JyCLwnAtt

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