Gonna be better | [Round 2]

Definitely needs some cal-mag plus. It's possible for there also to be pests but the symptoms could all be explained by a deficiency. Check the under side of the affected leaves for pests or signs that they were there just to be safe.

I'd say she could use some more P and maybe some calmag. Once in flower they really start eating, I had the same issue with one of mine, I added additional P and K, problem seems to have stopped. Happy growing.

Looks similar to a calcium deficiency, I would also check the ph to rule that out. Try and add some cal mag would be my first move, along with making sure ph is in check. According to your grow you just gave it purpinator? It has a npk of 0-2-4 so doesn’t look like it has all of what a plant needs especially at this stage.