I Have the same problem with a lot of mine, our weather was way above normal in late winter and early spring, since then, it's been alternating between being hot for a few days then cold the next few days. Poor buds have to be confused.
One of my seedlings has 4 scapes, 3 scapes of buds all ruined.
Every plant has this issue. It can't be thrips or mites because I use diatomaceous earth and or spray neem oil in the late evenings.
