[COL] NPC roles assigned to multiple Sims (Sometimes duplicates)

I found another role duplication, Felix Psyded. Oddly, Felix still showed up and did his rounds, then this other ghost showed up, and followed the same path through the campus.  Felix was even still there when this guy appeared. I have only ever seen Felix at Britechester before, never another ghost (unless i was playing them) and I checked with MCCC and he had Felix's special hidden trait.  But Felix has no special dialogue or anything like that, so nothing like, too disruptive, but it is still an extra sim added to the game needlessly.