She's doing just fine, my friend! She'll survive even a nuclear winter; at this age, she can withstand everything except theft and fire! In your case, two reasons came together for what happened!
1. The temperature was too high, causing the plant to hide all elements from the leaves into the buds, as it felt strong evaporation from its leaves!
2. She's already mature and capable of quickly transporting all substances through her tissues; on that fateful day, she demonstrated her exceptional survivability and was actively working on ripening her flowers!
Everything is fine, the harvest is coming soon! Stick to your schedule! 👌
Good luck, my friend! ✋😇👍