Sick Kefersteinia and Trichopilia

[BrassavolaStars]

Hello All,
I have some problems with two orchids I recently acquired.

One is a Kefersteinia aurorae, the other is a Trichopilia ramonesis. Neither plant seems to be happy with me but Kefer seems particularly precarious.

As pictured on the Kefer, the leaves are yellowing, there are growths from which the leaves dropped, and there is an advancing brown section on the leaf tips. I have been caring for it like something between a zygopetalums and a masdevalia.

In the past month, many leafs have fallen off halfway down the plant like a sick miltoniopsis does.

What is going wrong? I do know that the temps may have been a bit high for it lately.

The Trichopilia also has slightly similar problems. The bulbs are also a bit wrinkled, the leaves are becoming yellowish, some leaves have dropped, and some of the old bulbs are becoming brownish and non-firm. What is the problem with this orchid?

None of these plants are common and I would love to make them thrive and am very worried about losing either of them.

P.S: Sorry about the poor picture quality and the presence of my hand & foot in the picture.