There's no missions to load. If you're getting the notification that the screen has been updated, if you're zoomed in on a planet, that screen in 2.1 is used to display which structures are in orbit around a planet, since the game only allows 2 on the GUI and the mod allows for more than that to be built.
There are some story events in the mod in 2.1, but none which add extra victory conditions or missions per se- the Katana Fleet subplot does give you some extra stuff to do in the Thrawn Campaign GC, but it doesn't use the mission holocron. The victory condition for the GCs is to conquer the galaxy. The tutorial tells you what to do via the text prompts.