Innovative Ammo Hoppers Bugged on Twins

If you kill a Special As non host it will not reward you with the free 4 seconds on twins event
As you can see I kill two specials here and dont get rewarded, However If you are the host this will not happen I kill a bunch of specials as host and it triggers I dont know why not being host does this but regardless its a bug I would imagine this happens to other careers with similar type of talents but ive only noticed it on Engineer.