Why are my Green Crack autoflower plants not producing buds?

I’m growing Green Crack autoflower seeds, and I’ve noticed that some of my plants are not producing buds. They’re growing leaves just fine, but there are no signs of flowers. What could be causing this issue, and how can I encourage my Green Crack plants to start flowering?

Why is my Chocolope plant so short?

I’m growing Chocolope feminized seeds, and I’ve noticed that my plants are much shorter than I expected. What could be causing this stunted growth, and how can I encourage my Chocolope plants to grow taller?