Has anyone information on Dendrobium Kimilsungia?

I am living in Africa/Malawi, became interested in Orchids, when I found a huge Aerangis kotchyana flowering on a tree behind my kitchen, first did not know what it was, was also not sure, if the plant was indigenous.
Later a tree fell on my property and I retrieved lots of young plants from high up, tried to chose the right habitat for them in my garden, keep on spraying them daily- so far most of them are doing well.

New problem to solve:
In May I have visited North Korea and brought a Dendrobium Kimilsungia with. It looked like an easy case to cultivate it in Malawi, but that is not true!
I am hoping to get from you helpful hints, reports of other Kimilsungias growing in different parts of the world!

Greetings from the warm heart of Africa
SungaMoyo