Maybe this will help, I know that previously damaged leaf won't repair and show improvement, and to look for it on new growth. And it is on new growth look at her close you'll see what I mean.
Here are her sisters, one or two show cal def not bad though 1-3 spots and I've cloned a couple. But the first one is the one giving me a headache cause it's getting put into a srcog in the morning. Maybe even right now, but I wounderstand like to figure it out I'm thinking maybe I gave her a double shot of something the feeding before by accident but it is showing on some of the newer growth too