I have noticed it for a LONG time and i was never logged in on the forums, so never asked about it (i have asked in game and yes, people have encountered this too)
The Player 'star/marker' (under the character) is sometimes seen walking alone anywhere and at anytime in any map.
The star is on the absolute left (near the quest thingy).
Am i the only one who doesn't know what it is?
I finally decided to screenshot it (it's extremely fast so hard to capture, but got it after a couple of tries)

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