http://steamcommunity.com/sharedfiles/filedetails/?id=665071902
Here's a bug I've noticed when pubbing on this map: if you come out to 2nd from your team's last and try to launch a Wrap Assassin ball up at the spire, it immediately explodes in your face and does 4-5 splash damage to you. If you try it from other side of spire on coming from midpoint, it launches fine. Is there some wonky invisible collision hull sticking out too far or some volumetric trigger or something that's making the ball think it's hitting something?
You normally can't even launch the ball if you're too close to a wall so I'm not sure what kind of trigger would make it blow up instantly, but it's a fairly big area where you can't use the ornament.