light sloops ganging on a crippled craft

[another pirate]

I was about to post the same thing as Sarah but she beat me to the punch. But I have seen it where I had the right to board and someone else did grapple the ship. I bet there is a bug that lets them. Maybe they can't see the circles but can still grapple if they hit the area. Might be worth testing. Only with a friend tho.