Well, my Masdie is still occasionally developing brown spots and losing leaves, but it seems to be producing new leaves a lot faster than it's losing them, so I'm thinking it's just dropping old leaves? Anyway, I'm absolutely thrilled:
It has at least three buds! This will be the first time I'll get a Masdie to bloom, in past I've had good growth but no flowers. I can't wait, and I hope they aren't too tall for the tank!
Everything else in the tank is showing new roots or leaves or both, except for my Angraecum distichum, which has been in stasis since January. I'm hoping it just slowed down for the winter and will pick up now that it's spring. My Dendrobium cuthbertsonii lost a lot of leaves, but now I think it's done sulking and I see a new leaf and roots.