Is the bud in the pic the clone or did you take a cutting from it. If it was a cutting from that it will die the same time as it’s mother if it’s an auto flower. Photo would just veg up like they always do then bud. The mutation on the top of that bud In the pic is Bud burn from the lights intensity. Try to bend down the branch without snapping it a few inches and it’ll reach wider up than out.I had the same thing happen to my Alca golds and it freaked me out is how I know what is causing that. It only did that on my main cola and colas that we’re highest up. My lower buds were okay though. Hope this helps ya and they look nice and long for good yield.