New leafs at the end of flowering?

Hi man, Im not the most experienced grower out there, but I recently experienced problems with my grow and I think the main reason is heat and light stress. So I sorted out cooling and turned down the lights slightly. Given this is an autoflower, this shouldnt affect it, but in search of a solution for my problem I read that it can help to reduce the light time. So if you are not already doing it, maybe consider changing to a 12/12 light cycle (Even though it is an auto) Maybe have a look at my first grow, the Guerilla glue... It seemed pretty similar in size and appearance. My bet is it is some kind of stress causing the plant to go into veg again. (Might also just be the strain that is picky)