Found a weirdly specific bug last night, but it seems pretty clear why it happens. So every 10 gold engrams you pick up in Grasp gives you full ability energy, right? Including your super. But I noticed while running Starfire Protocol it kept feeling like I had less fusion grenades than I was supposed to. Turns out that when you pick up 10 engrams it doesn't just give you full energy, it resets each of your abilities to ONE charge. So even if I had two fusion grenades, I could pick up a 10th engram and watch the second grenade charge just vanish before my eyes. I don't know if this happens with other builds/exotics that give extra ability charges, but I assume it would. This seems like something that would be a well-known bug, and maybe it is and people just deal with it. But I've never heard of it and it seems kind of silly for it to exist this far out from the dungeon's launch, so I'm making a post.