More Awesome Than You!

I have a strange glitch occuring. I had a teen use her cell to call 'transportation' and invite a sim to a community lot. I get her to invite a friend, the game asks me 'where I want to go' and the taxi shows up. My teen sim then leaves in the taxi and completely disappears from the lot and from the user interface. Its as though she has left home by moving out. The lot never goes to the community lot shes just no longer at home. Anyone else ever had this? Anyone have any idea why this is occurring? I exited the lot with out saving and went in and tried to do the same thing again. It keep occurring. Suggestions appreciated.

Edit: It only seems to happen with teens...the adults are able to go to the community lot this way just fine.

I got this once in the Pleasant Household.  I was on somone else when Angela/Lillith was leaving and she just dissapeared.  I figured it might be tied to the InSim because I've never had that kind of problem until I installed that.  I just used the teleporting painting to bring her back and everything was just fine.  Just like nothing had ever happened.  I haven't had any problems since, so I don't have any suggestions except see if it's a hack?

Are you running Nightlife? Is your game patched?

I had an intermittent problem before I ran the patch where I'd send my sims on a date, the Downtown would load, then the lot would load - but instead of beingLive Mode, it would be in Build/Buy Mode with no sims. I'd have to go back to the sims' house to find them and try again. I never tried sending a single sim Downtown, always the couple together - but this sounds like it could be a version of the same problem.