Most of my plants are still dropping buds/flowers, but I attribute that to our persistent 95F+ weather. But I have an Aji Panca that is about 3 feet tall that starts to form buds, then soon after they are barely identifiable nubbins, they turn black and die. The plant looks healthy otherwise.
EDIT: Pics in post #3 below.
EDIT: Pics in post #3 below.