I had several different strains of plant do this. They all exhibited the same behavior. They were under a 400W HPS light (with none closer than 18") and all were 3 weeks into the budding stage and had buds on them. Then they started putting out a lot of small leaves throughout the buds.It was like the plants were reverting to the vegetative stage as the buds were being replaced by these small leaves. My question is why did the plants do this?