There is an indication of a version rollback of the game. Please download our trainer #2 in the list and try again for the time being.
Yeah like So1emn said, Paradox is notorious for constantly re-balancing and tweaking. Usually it's just bugs, glitches etc, but sometimes it's entire game re-balances vis-a-vis multiplayer. And rarely it's an entire game mechanics re-write like what happened with 2.0/2.0.2.
Of course those big changes don't always go over well with the community and so of course they have to patch even more to fix the bug/balance issues they introduced in their big mechanics change...like what happened with 2.0/2.0.2.