Is there anything you can do to reduce the number of "I don't see anyone by that name around here" bugs that happen when fighting? I basically took Dec/Jan off and I didn't see that message before then and I see it pretty regularly now.
I would guess that this may be terrain based/triggered as I see it the most while solo'ing my bard outdoors. I cover a lot of ground and usually (but not always) it is a small hill/dent that seems to trip this. I have also seen this in some of the flattest parts of the badlands though. If I have a mob dot'd and he goes into this mode, I can't loot the corpse if the dot kills him.
It can also can be a group killer when the mob you are fighting suddenly gets bugged and even though you can plainly see him 2 feet in front of you, you can't attack or cast on him but the mob is still able to kill you.
I would guess that this may be terrain based/triggered as I see it the most while solo'ing my bard outdoors. I cover a lot of ground and usually (but not always) it is a small hill/dent that seems to trip this. I have also seen this in some of the flattest parts of the badlands though. If I have a mob dot'd and he goes into this mode, I can't loot the corpse if the dot kills him.
It can also can be a group killer when the mob you are fighting suddenly gets bugged and even though you can plainly see him 2 feet in front of you, you can't attack or cast on him but the mob is still able to kill you.