My brother had this happen to his plants. He asked me to reach out to you. He’s clueless to what has happened. Any idea? What can he do?

I don’t believe so. Come to find out I think he used some Miracle grow he found and it was old. whatever happened I think he knows.

If the soil is watered often then it could lead to over-watering symptoms. Is the soil being dried out between waterings? More info: https://www.mrgrowit.com/post/over-watering-cannabis-plants

I'm going to go 180 here and suggest she may be way over watered. If it was dried out from underwatering I would expect to see more brown. The leaves still look very green and the soil looks very wet.

But like the others, that's just a guess. If you can answer some of @mwhite9829 questions we might be able to get some better answers.

It looks dried out. More history would help more, soil, climate, nutrient/water history and frequency...

Were they transplanted looks like extremely under watered but I'm still new so I could be wrong