Hey! Congrats on your new rescue. I think she's just too young yet. I know when a cat that I used to have, Vella, had kittens years ago, even with a her example, it took the kittens a while to get the hang of it. I think maybe it's just when they have to go, they go. Our kittens, and, there were six of them, would go to the litter box if they were close to it. But, if they were in another room and had to go, they would. The "trek" back to the box was just too daunting, I guess. We just ended up putting three or four boxes all over the apartment, and, they never had a problem after that. Maybe you could buy several of those cheap shallow ones from walmart or something and put them in different rooms. I know it looks tacky, but, we only had to leave the boxes down for a couple weeks. It's worth it! I posted on the other thread, too, but, both your kitties are very pretty!