Vanilla Orchid isn't growing well/losing leaves and no real root growth

[Rmhenry4q]

Hi there! I received a Vanilla orchid as a gift for Christmas. It was meant to have live roots when I got it. However, it only had one aerial root that is maybe a quarter inch long that survived (all others were DOA). My cutting is about 3 feet long. At first I did not have it in a medium that drained well so the leaves rapidly turned leathery dropped. I now have it in a better draining medium but my poor guy only has 2 leaves left and they are only barely hanging in there. It looks like it is wanting to grow some roots. It keeps getting little buds that are 2 - 3mm that look nice and green like roots. However, after a bit of time they stop growing and turn brownish and look a little bark like. Has any one else had this issue? Or some one steer me in the direction of some info I can read about this that is reliable? Every time I try and search I cannot find any one who has had this problem.