Girl Scout Cookies Extreme

I need some help. So, the top plant in the photo looks fine and the front plant is experiencing some severe issue. The light intensity was ramped up during flowering mainly on the lowering plant which is showing the deficiency. I have since backed off the lights to 22 inches. When the issue was first observed about a week ago the pH of run off seemed low around 4.8 so I flushed with a gallon or so of water. The pH of runoff has since been normal around 5.6 to 6.0 when watered with 6.2 to 6.5. So I've continued with light cal mag and half dose of tiger bloom as that seems to be the type of deficiency that is occuring. What is strange is that aside from the lighting difference the two plants have been given the same food. The plant with the deficiency has bigger buds that are noticeably more ripe. Comments appreciated.