If I use SimSurgery on any Night Life townie, my game crashes if I try to load a community lot, even if it's not a Downtown community lot.

I deleted the neighborhood altogether, and started a new one. I created a small, empty residential lot and a small, empty community lot. I created a Sim, and had her visit the community lot. No problem.

Then I opened SimPe, and used SimSurgery on one of the Night Life townies. When I next opened the game and neighborhood, I took the same Sim to the same community lot, and the game crashed. This happens over and over again, without exception, no matter which Night Life townie I use SimSurgery on, or what I change their appearance to.