I got this orchid as a present last September. It lasted till November and I repotted it into a general mix containing fir bark, coarse perlite, charcoal, chunky peak/sphagnum moss. I'd cut off all the awful roots at that time. I trimmed the stem down to that last node.
It seemed to be doing fine until about a month ago. The leaves are now doing this wrinkling thing and the stem is just brown. The aerial roots all turn dark green when I water (about once a week, I just let the water run through the plastic container then set it back in the porcelain one). It sits next to a window that gets 2-3 hours of sun in the morning.
Any help appreciated