Guild Wars 2

Greetings, I found this nifty little issue to which I assumed was only on my computer, but my friend running with me also could see the same thing.

In the image below the reward chest at the top of the balloon tower is floating and not rested on the tower as all the other towers are.

Server: Sorrows Furnace
Location: Frostgorge Sound
Waypoint: Skyheight Steading Waypoint