The photo tells a lot. It looks to me as if the newest leaf on your N. ovata are considering prodicing pitchers for you. *The older leaves look to me to be, well, kind of sick. *Possibly the shock of transplanting.
I can also see from the reddish hue on the leaves of your "N. gracillima" *(it it true N. gracillima by the way?) that you are supplying plenty of light.