Vanilla Planifolia not growing!!!

[Luksgloria]

I have a planifolia and it's not growing , i mean, it doesn't die and leaves are not falling or aging but I can't see any new growth for like 3 months. Is it normal for a Vanilla to have some dormency period or something like that? Winter here in my city is so warm, never below 55ºF at night, although the daylight is not so strong as usual. I've tried to repot it to a more humid setup (cause it was just attached to a plain coconut fiber board) and with some roots in contact to a more fertilized regular soil. Have I done right? How do people treat vanillas to make them grow and bloom well ? All my other orchids are growing nicely, not bloooming yet but getting ready for spring I think!
Thanks!!!!
Lucas