Have you checked your pump? Some pumps mess with the calcium and magnesium.
Ive incountered a simlar looking problem on OG it seems to be light and nutrient sensitive .
mite and mold sensitive too. 6 other strains along side feed the same, cared for the same ,
and leaves just like your holding, im in SOG soil containers.. If I can figure it out , it will be
my last OG. Good luck