Guild Wars 2

Do all races of Engineers have the issues that i do throwing grenades from towers and keeps in WvWvW. 80% of the time i get LOS issues or my grenades explode directly on the side of the wall. Is this working as intended?

I don’t have this issue on my Asura as long as I’m not standing right against the lip of the wall. Back up a foot or two and launch from there.

This is working as intended and not unique to your race. You cannot lob over the ramparts without being extremely close to the edge, and thus within range of retaliation, despite what the lobbing animation should indicate.

What you can do is jump and throw at the sametime