Hooray, Tarev ! More Hoya !
I have confession. Ohhhhh, it's baaaad, too!
I ordered an expensive Hoya Lauterbachii start two years ago. It arrived rooted in soil and grew beautifully for one year. I changed nothing. The lower leaves started to turn yellow and drop. After 7 months passed, almost all the leaves had fallen off. I was heart-sick. Yes, I did post for help. Then I got a brain-storm. The stem was still green! I cut it into 8" sections and put them in water. All but 3 sprouted roots within 10 days. Once fully developed roots were observed, I planted them up. Wahoo. But here's the odd thing - some were set in water up-side-down (no leaves, and I didn't catch the mistake). A new stem sprouted- pointing down. Thats when I realized what I did!