Guild Wars 2

After defeating the “guardian of the gate”, my character teleported a few feet into the air and then faceplanted but otherwise stayed in the same place, and then was presented with an objective on the other side of the map in reachable territory.

(futhermore, all three times I’ve done this, there’s one enemy in that big field battle that doesn’t show up until 3minutes after everything else dies, delaying the quest progression)

There’s no route to walk there. The next time I did the quest, it warped me over there, allowing me to actually complete it, so it’s not a bug that happens every time.

That waypoint is back at the Pale Tree’s location within the instance. Once you defeat the Gate Keeper a form of portal -should- appear and you go back through it.

Yeah, but there was nothing. I was stuck and had to redo the mission
I guess it’s a rare bug, but it’s some kind of bug.