I play skyhammer a LOT, like a LOT (around 50ish hours I think), and I’ve never noticed any bug using his abilities, the only thing that annoys me with him is when the marker ends up beneath the EV when you’re trying to throw it fast in the middle of gunshots, it works as a nade then and does not trigger the airstrike, that should really be fixed. However, that was a REAL bug, because it wasn’t obviously meant to happen, but it did anyway because of how models work in the game, the issue you mentioned is somewhat common during lag (Happened to me few times). When I’m in a laggy server, or when I’m lagging myself (Not blaming the net code), the marker just disappears, the model shows that I threw it, the cooldown is triggered, but the marker is nowhere to be seen, PURELY because of lag, nothing to related to how the game works. And in case you want to know, it also happens to every merc that has deployables (Stoker, Nader, Javelin, Aimee, Vassili, Proxy, Fragger, Thunder and Fletcher). So what @K1X455 said is partially correct, it’s because of lag, but not because of the net code (if you’re not lagging you will NEVER face such problem).