Like grey wolf said I’m also thinking about iron or maybe sulfur deficiency but according to the breeder of your seeds the seed to harvest time is 55-70 days so I would just let her ride without changing things around,it’s only a few leafs on each plant and she’s near the end of her lifecycle anyway,but I definitely wouldn’t recommend spraying things on buds you gonna smoke,only use sprays (nutrients or pesticides) when in veg
Happy growing✌️