Since you seem to be getting into GLMM code: GLMMs have been getting a lot of love in recent development versions, so if something doesn’t work in the release version, do try out the development version! For a casual user, most changes are just improvements, but if you start manipulating results structures directly, then you’ll discover that we are reworking various structures. So, the display won’t change much, but if you manipulate results programmatically, things might break. 