Rot on Paphiopedilum?

[Roberta]

Now that I look again at the photos, I agree with SP that roots look fine (Paph roots look different than other orchids), sufficient to hold plant with stability.. Handle with care, they tend to be brittle where they attach to the plant. Just repot in fresh bark. I don't see anything concerning on the old leaf. That's just what they do. The new growth is good, and there will be another coming along soon.