Also happening in West Commonlands and occasionally Burning Woods.

Seems like something broke or the server needs a restart at the very least.

There's already a post about this in bugs section. I have heard that fixing desyncing in TT somehow caused this.

Seek help, P99

This was happening to me in Dreadlands with some of the Yetis which roam around. It wasn't all of them. Also, my wife was on at the same time and didn't see the ghosting. From my POV, I was standing in front of a stationary Yeti but on her screen I was standing by myself.

Happens quite a bit to Talendor as well.. VERY bad ghosting.

:D

It has to do with limiting information from server to client. Our clients get the initial Mobs spawned, but it takes some time for the client to receive updated info as to where the mob actually is... It seems to load in sections of zone at a time. So if you run around to the section the mob is in, the client will update.

Worst in big zones because they mobs wander so far away from spawn points. Our client sees them at spawn, but hasn't updated the other side of the zone with its location.
This seems to be a problem when trying to fix the desync issue which was fixed by limiting client info.

The worst example I saw of it was a drolvarg guardian disappearing into a wall by hands room with a couple of pets on it, summoning/killing someone as we all scattered for the zoneline and a big train forming after :p

Ghosting while fleeing is no joke.

A ton of the bears in WC are freaking out. The bear pelt business is done as we know it.