I too have been playing with animations for ark in the UE4, but in my case its for OTHER items, and not weapons or FPV or anything of that nature. That said, something came to mind as I wached your video. FYI I am a bit noob, so take with a grain of salt. I noticed that while you have the melee animation for the weapon, when the weapon is attached to the hands, I think it uses the ARM skeletons as well. This could be why the WEAPON animation doesn’t play when you go to melee or reload. If the ARM skeletons don’t have a corresponding motion for a melee with that weapon or reloading with that weapon, and since the weapon is attached to that socket, the weapon animation alone might not play. You may need to animate the ARM skeletons in FPV to move in sync with your WEAPON skeleton so BOTH sets of skeletons have a movement montage for that melee and reload animation so that it will actually play. Again, since the weapon is attached to the socket of the ARMS skeleton, and the arms skeleton did not appear to have an animation to fit that of your weapon, that might be why the weapon animation didn’t play, as its attached to the arm skeleton.