As I have been leveling up recently, I have noticed characters appear at a node, harvest it, and disappear immediately upon completion. No movement or visible skill use from the character and no other characters appear to be lag jumping. It was most apparent today when I came across two cypress saplings in close proximity. A character was harvesting one with 2 drakes hitting him. He then appeared at the nearby node, the drakes wandering over to him again. He then disappeared completely and the drakes slowly walked back to their spots. Unfortunately I have never been quick enough to get a name or class of these people as they are in and out before you can realize what happened.
Apologies if this has been covered, I don’t visit the forums very often.