@lusidghost It was a weird situation because instead of dialing down the organic nutes/temp/co2 I just kept it at full speed. Since I had a second plant that was late to enter flowering and a 3rd that looked nowhere near finished. So I kept the room at full-on. Perhaps that is what caused the issues of dead leaves and late maturity.
Now that I've cut down all but 1 plant, I actually want to to finish quicker (in order to get my next batch in there). Thus I've just greatly reduced the temperature, cut off co2 supplementation and will only do light waterings without added amendments going forth.
I suppose this will encourage the final Blue Cheese I have in there, to finish in the next week or 2 instead of longer, but lets see. It has already been going for 10 weeks! That Blue cheese is looking very weird with yellow leaves and buds are less dense than I would like. It stretched like hell at the beginning of flower (I think it stayed in veg due to a small light on my aircon that I later covered).
One factor as well, is that I have perhaps too much light. In the 4x4x4 I've got 720 watts of quantum board LEDs. It's beyond the upper limit in the center, and at the limit (cannabis can handle) around the edges. To the point where the wedding cake had some bleaching on the top of some buds from time to time, in the center of the room.