El Nath - bad spawn location?

http://i.imgur.com/4P0VGd8.gif

Occurs in the "Watch Out for Icy Path II" area.

Recreation steps: Have monsters spawn roughly around this location; there's another location to the left of this that also has the same issue, but it only occurs in these two spots.

Also occurs when stuff like Transformed Yetis are created at the location, as you can see in the gif.

Note: There's a bugged 'adventurer's shrine' or something here, but I didn't catch it on the clip. If you hover your mouse over that general area there's some kind of interactable object that doesn't have a sprite. Dunno if it's related.

 

I pretty much sat around giggling the entire time, I ended up getting like 5-6 of them to fly through the map like that. :3