There must be something wrong with my growing environment as I doubt these hermied because of genetics. This is difficult to resolve because of lack of experience. The only thing I know it can't be, is light leaks or light schedule, this I have tested many times. I've sat in there for 20 mins and it is truly dark, and very boring I might add.
Can the stress be also from over crowded root zone? I keep thinking of potential problems above ground but forgot about below. The plants look very healthy to me and very sticky with resin. Some PK13/14 went in the res a few days back, they look happy but still stretching, they're getting near the light now.