Buds not developing (Blue Dream Auto)

She definitely deserve a chance! If that sick of leaves is not progressing, just keep do what you're doing 3 weeks, I guess. Plants that had problems at developing might grow longer. But if you still have lack of nutrients, I'd suggest to add more secondary elements, like Zn, Fe, Mn, Mo. They usually contains in Micro nutrients with a lot of N. CalMag is also a good idea, but I don't think it's the only and the main problem here.

You have a nutrient deficiency but many white pistils growing, which means the plant is going to be delayed due to the problem it had. My advice: Keep going with it, feed it with flowering nutrients on alternating waterings (one watering with nutrients, one watering with just pH-adjusted water). That plant is definitely going to need 2 or 3 more weeks to reach maturity. Good luck!

Looks like Deficiencies. Potassium and phosphorus calcium nitrogen. When they go into flower first 3 weeks they eat the nutz