I'm not having great luck either, at least with common beans. The Fort Portal Violets are chugging out pods at a decent rate, but while I am getting the odd flower in the Mottled Grey (VERY odd, like currently 3-4 plants out of around 40 making any) none of them seem to be taking (they show up, open and then fall off the next day. Maybe when it gets cooler again)
Moving from beans to cowpeas, they mercifully are doing well. Pretty much all of the dozen or so are covered with flowers and developing pods (it helps soothe a bit the fact that only one of the adzuki beans and none of the rice beans, seem to be "producers" this year) There's even one volunteer cowpea with in the lesser stump (probably from some seed I tossed out earlier this year for the critters.
Actually that one is a bit odd. I'm used to cowpeas with pods that hang down, and ones that are more or less parallel with the ground (or angles between) but that one is the fist cowpea I've ever seen whose pods point straight UP (it looks like a miniature green candelabra)