As the title says, I've not been receiving any materials whatsoever when dismantling Gambit weapons. At first I thought it was a lack of attention on my end and I just missed the readout when I broke down the Gambit rocket launcher, but it just happened again when I dismantled one of the Gambit auto rifles. No gunsmith materials, shards, or cores. I haven't attempted to break down any of the armor I've been receiving as I still need that for the associated quest, so I have no way of knowing if this bug is affecting my armor drops as well. Both of these incidents happened on the PC version of the game.