This week was rough. My soil mix this round was not good. We started to see leaves die on the first day of the week and got worse by the 4th day, when I finally took action after getting an idea of what I was dealing with.
Our soil had either not enough phosphorus readily available, or other nutrients were antagonizing its uptake.
We defoliated a ton, and it hurt her, but she might make it until the end.
We then applies some bone meal, basalt, and some other micro nutrients found in our bloom top dressing mix. We top-dressed with it, as well as watered it in as a drench.
This remedy happened on day 4. On day 5, she didn't have as much leaf die-off as the previous day, and by day 7 she has been doing much better.
Stuff happens, I guess.
I think she will make it just fine. Stuff does happen, but seems like you handled it quickly, and are taking good care of her. Wishing you a great rest of your grow, and an amazing harvest :)