Dear Philipp, > As you can see, the kern feature does not have an apparent effect > in node mode, whereas base mode resembles the output of Xetex. Here \testme {node_palt_nokern} and \testme {node_palt_kern} have different widths. The version is mtx-context | current version: 2014.12.06 14:20 Am I misunderstanding something? Best, Akira