After getting the Supernatural expansion pack, I started seeing these whitish/gray oval objects on the ground that I knew were rendering glitches because they would have rendering issues as you would rotate your view around it. It definitely seemed out of place, not part of the normal view or like any normal object. Hovering over it did not bring up any info, and I was in a community lot at the time, so I couldn’t go to Buy mode to see what it was. Just now I saw two of the ovals in my Sim’s home. I went to buy mode to try to pick it up, but it said object was in use. I then used the MoveObjects on cheat to pick up the object. It is described as a Social Jig 2 person. A quick search brought up a forum post about it (back in August 2011). The poster says it’s something the game uses to make sure two sims are positioned correctly for a social interaction, and you shouldn’t be able to see it, because the game should delete it after the social interaction is over. Weird how I just started seeing them in Supernatural. Another forum poster said it was blocking traffic, so if this is the case I guess I’ll have to use the MoveObjects cheat to delete it.