Second time of the day dealing with this issue. Guns are grouped but only one actually shoot.
Fought a bunch of Algos, fortunately AFK farmers. I died to a Caracal just before this and found out looking through the ammo that dropped from my guns that not all my guns where firing. As it took ages to kill these Algos that I should have blasted in two volleys I ungroup my guns and this is what I see :
I don’t know what trigger this problem or if there’s a workaround or at least a way to tell before noticing you’re doing jackshit damage but this is a big problem especially if it can happen so often.