I dont know what is hard to reproduce here...
What is hard to reproduce is the lack of AI damage, when I have been using AI on either looted weapons, crafted weapons or imbued weapons and the hit lightning procs I am simply seeing both the AI damage as well as the energy damage from the lighting proc.
The first reports of this issue indicated that it had occured with a composite bow, a kryss and a spear, so those are the weapons that I have been concentrating on during my testing.
I took a looted kryss with some lighting on it and I attacked both monster and player, when the lighting proc, the AI is not damaging.
My concern is that there may be some sort of conflict between other mods on the weapons and the hit lightning proc. Would you still happen to have this specific kryss?