While playing the Jalayrids I allowed Timur to spawn and as usual, he did. After most of his neighbours declared war on him I automatically did too, I assume this forced war dec is implemented to insure balance. With the 150% discipline I won the war easily and peaced out for money (25% Warscore), warreps and annulled two of his alliances.
On the next monthly tick I got full-annexed, Timurids got cores on all of my land immediatlely.
Is that supposed to happen? I can't continue my campaign because of that, none of his other opponents got full-annexed so I am extremely confused why this would only happen to the player.