Alright, probably not light intensity or heat related then. I would avoid dolomite lime in the future and add cal mag at watering, especially if you’re running RO. If you want to mix a calcium amendment you can add some oyster shell flour inti your mixes. Soil also takes time to correct lockouts. Cal mag you can foliar feed and it will be immediately available. Make sure the pots dry back really good for the next few waterings. Cloth pots are nice because they dry back a bit quicker so you can correct things faster, also makes overwatering less of an issue. I would definitely recommend them, at least for your final up-pot before flower. If it keeps getting worse I would repot into some soil without the dolomite.