I'm in the same boat. Somehow I had the roots on my paph delenatii rot completely. I'm not doing the S/H method of growing, though.
It came this past April in a 2" pot but I was seeing signs of slight growth...then this happened.
I didn't know what to do, so I sprayed KLN on the base of the plant, and repotted it into sphag moss and will say a prayer and do a little jig....hope for the best.
I feel like the blame is on the company that shipped it to me. It didn't have much of a root system to begin with. I didn't know what to expect for this paph and it being so small, so didn't complain. Perhaps it was doomed to begin with. I don't know.