Hoya maxima Red Corona Continues To Vex!

I have desperately been trying to get a Hoya maxima, or Hoya imbricata to flower for me for a very long time.  I have finally gotten to the stage where I am getting peduncles and buds, but I keep losing them, and it is killing me.  Flowering this plant is my holy grail in the Hoya world, and maybe one day I will finally get it.  Below photos of my latest set of buds: