Greying out of event recipe books happens when you are viewing with a crafting subclass that is used for the recipe book themselves. So, for a max level Craftsman, the Feast/Crafts one would be greyed out. For Scholars, the Scholarly Pursuits book would be greyed out, for outfitters, the Outfits book ... or at least that's how it normally works for them, since the items in those books don't use things like geomancy and such, but class-specific crafting arts. And yes D'Ina's pathing is much, much worse this year during her initial roam and babble stage. Once she is attackable at the end, she's in the proper spot, of course, but for the rest of the time, well, she's like the Sta-Puff Marshmallow Man in Ghostbusters - stomping all over buildings, mobs, etc.