On my N. spathulata x (spathulata x boschiana), the newest leaf that opened up is curled up on both sides, making a v-shape. Its a very large plant, maybe 18" across and 6" tall. When the leaf had just opened up, I added some live sphag to dress around the top of the pot and I accidentally knocked the entire tendril clean off. Kinda surprised me, but understandable. I don't think it is diseased. None of the other plants do this and this guys looks rather healthy.
Also, no pitchers will form on it. Not sure why... Not sure if they just take a long time or what. It has two tendrils on it that never formed pitchers. All of my other highlanders, intermediates, my one lowlander and one ultrahighlander are fine, forming pitchers, growing fast. This guy seems a bit slow to put out new leaves. VERY SLOW.
Temperatures vary in my greenhouse. On days 70F-90F (95% of the time), it stays about 75-85F in the greenhouse during the day with 60% humidity at lowest during the day. Always 50-60F at night with 90% humidity... always.