Vampires / Fairies pack

I *think* this only happened when I got the fairy pack (which I think was after the major update / bug fix if I recall right)

So, my Vanessa (yes, the NPC since my Sim is romancing her to marry her) is a vampire and an actress (obviously).  One of the two aspirations (I think World Famous Celebrity)  requires her to get asked for selfies etc.  Because of that, I tend to go "bar hopping" from one world to the other - the idea being I see different sims and sim types.  For some reason, I keep getting the bulk of the sims that were at the other bar(s) even though I'm only moving Vanessa herself.  The kicker:   Other celebrity figures show up anyway and sometimes the game is taunting me because one of the other NPC actors get asked for a selfie.  I don't believe it's supposed to work that way and especially with other celebrities (several of the NPCs show up at once) showing up to "compete" to get that progression part done.