The two I can think of off the top of my head are as follows: 1) Kahvi's not Greywolf and Willowgreen's daughter, and not Two-Spear's either. I know that veers very far from canon, but I just think "Ehhh, not a wise plot device" (and that's the kindest way I can put it) each time it comes up. 2) In the Blood of Ten Chiefs story "Love and Memory", Zarhan Fastfire Recognizes Wreath after she Recognized Prey-Pacer. He tells her that Recognition must have misfired between her and his son, and beds her before departing. It's true that he Recognized other elves at the drop of a hat, and the pureblooded elf Selnac started Recognizing over and over even though she couldn't have more children when Rahnee was chief. But honestly, Zarhan Recognizing Wreath just rubs me the wrong way. So I think of it as Recognition misfiring between the two of them and not resulting in any children. Maybe pregnancy hormones had something to do with it, I dunno.