[llamabeast]

To be straightforward with you Huitochka, that's a definite case of user error. If you try to create a new game without any mods enabled (or with just CB1.84 enabled) there will definitely be no mod nations available.

As Executor says though, you may have accidentally re-enabled the Expanded Nations mod by looking at a Testing Grounds game (I think opening a game sets the current mod preferences to match that game).