There could be a number of factors that cause a flowering plant to bolt and try to establish re vegetative growth; lighting, not raising lights, overfeeding, not having the proper light cycle, not flushing/finishing the flowering cycle... bad genetics (unlikely)
I've rarely seen it, if a plant is finished, but hasn't been cut down, it might do this. Especially if the light cycle is not 12/12.
Instead of digging up ancient unanswered threads start a new one so we can figure out which factor might be the cause. If Google brought you here, hopefully this answers your question.