Hey pale ,
Any unwanted stress can lead to hermies , Most ppl. take cuttings while plants are in veg. - also as a gen. rule plants will dbl. if not triple in size during flowering . 6 plants in a 3 x 5 is way tight esp. w/ em that tall . Maybe work from clones and cut the light cycle to 12/12 sooner next time .
I don't ever wait for plants to show sex before flipping them ? The light cycle chg. will do it for you in 14 days or less .

1000w 3 x 5 x 8 = 1 - 5 gal. bucket , and 1 fem. plant in my world = about 8-12 oz w/ some topping -n- training .

Peace
Crispi :jointsmile: