Invisible person..?

Hey,
Just ran a Mad Lab, three people, everyone's happy. Then, in the end, I'm the only one of the three who get a Wis from the Scientist.
However, the strange part is, after opening the to Horrific Creation, I looked at the mini-map and saw a fourth yellow dot exit the room, stand where the 'Back to Realm' portal is, and vanish. I asked the others if they saw a fourth person, their answer was no.

I could be missing something extremely obvious, however I'm positive I saw this fourth dot leave the mad-lab.

Opinions..?

Options --> Chat --> Star Filter --> (Nilly's Client) Hide Players Based On Star Filter [on] off.

Possible explanation.

idk,maybe he forgot to wear his bandage and u had hp bars so u could see him.
Please get a screenie of it dude like this post
http://www.mpgh.net/forum/showthread.php?t=822719
idk if wat ur telling is true
But y didnt u hover over the yellow dot and see the players name ???

Also
Rarley you can see yourself as another character(by ur name,inv,fame...exactly a duplicate of you) in the nexus or a realm or a dungeon (others cant see)
When you get account in use.Happens to legit dudes too

i was just jkin,
Havent you read the book Hollow Man ???

Maybe just lucky lag ?

I've had this before. A light-blue starred priest was doing a UDL with my friend and I, and all I could see was this yellow dot following me on the map, then him leveling up. There was no character there. We were talking to him and everything, the chat was showing up but he wasn't. Was weird.

Even weirder than that though, I sometimes get invisible enemies that show up on the map. (No, it's not a beer god.) It moves and everything and my pet likes to shoot at them as well. Happens in more than just dungeons, sometimes in godlands.

Allow me to explain. Invisible enemies: If you 'kill' an enemy after changing your stats via cheat engine.
Invisible players/enemies:If they heal as soon as they die. I'll try to get a video of it soon.