I think I might be having a nute lockout. Certainly shouldn’t be lacking. Day 52’ish, and I just switched to flower this week. One plant has purple veins, one yellow or brown edges. I did give them some Dr Earth flower girl and elm dirt plant juice, cal mag, silica, Epsom in the past week.
Using tap water that was degassed for a couple of days.
You have been hitting them pretty hard with nitrogen fertilizer bud. Next grow about 1/2 what you gave this plant. See how dark green they are. Also the burned points along the leaf edges. As you have moved to a bloom mix your plant should be ok. The color will lighten up.
What is it planted in? Have you added any other Calcium amendments?
Check this link and see what you think.
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