I have never seen a Hoya bella seedpod before and can’t find any photos online. This coupled with the fact that I have had hundreds and hundreds of H. bella flowers over the years and never had pollination, makes me think that it is kind of rare.
I am very excited to try to raise some of the seedlings of H. bella. I will not be as stupid as I was with my H. chinghungensis seedpod from a couple of years ago. I took it off from the plant when it started to turn yellow, and it was not ready. I will keep this one on the plant until it ruptures and hope for viable seed. Here are a couple of photos of the pod, which I only discovered about 24 hours ago: