Ok so this is probably the most weird thing that has happened to me recently, sorry if it all seems disjointed, but I'm still weirded out.
Ok, I'll start from the beggining.
I enter seasonne, go talk with Mrs.Claus to do the toy factory quest, Naniva's with me.
I enter the thing, do the quest normally, beat the boss. Naniva's still with me.
I leave the boss arena, and for some reason the train section happens again. Since I don't want to do that, I save&quit out.
I enter the game again, and check my quests, it says that I had finished Mrs.Claus quest, so I go to her to colletc the award. Naniva's with me, and she drinks her honey.
Interested in the trains thing, I head back there, and just as I suspected, it starts again, and now it's where things become weird.
Naniva goes with that guy ( who I allways forget the name of ) to do whatever that they do to enter the boss room, but since the boss is dead, I guess she doesn't return to me.
I check my quest again, just to make sure, it's still marked as finished.
So now I'm without Naniva.
Then, I head to the trees that she clears after finishing the toy factory, and the game crashes as the cutscene starts.
Luckily enough I'd taken a ton of screenshots, so here follows an Imgur link ( the screenshots are in cronological order ) :
http://imgur.com/LciNwVU,sW8NFZ2,x6ydrjy,S8nT8kE,Q10GGBd,fhLHx46,Gs505eP,cbb0tWS,e66T4ks#0