Hermaphroditic plants are a problem for drug plants if you want full potency and yield. The plant will naturally direct energy to making seeds instead of inflorescences, and potency decreases as well. It a sign of low quality genetics if it happens spontaneously and there is no problems in the grow causing the plant stress where other stable varieties perform as expected. Considering the common choices in seeds are the ones cheapest to produce, and not knowing where the seed for your plant came from, I can't make a guess if its 1- environmental stress plus bad breeding practices that dont stress test the hybrids to weed out the weak, or 2- purely environmental due to stress in the growing environment. If this is unususl and other plants are performing just fine, its likely just not good genetics.