So, I've had this for a while now and could really never get it to do much. We talked about top watering, not top watering, cooler temps, warmer temps... I just could never get it to do more than one or 2 leaves and then those die off... Here is what I have going as of right now.
I have it in maybe a slightly cooler part of the g/h (by the cephs) but in the heated greenhouse. So nights around 55-60ish and days around 80-85f. I no longer water through the top, at all. and it generally sits in water (same tray as some random VFTs and the U. alpina.) I bet you wish yours was doing so well!