Ha salido publicada una Guía de Bugs y posibles soluciones, por parte de IGN. Por ahora os la pasamos en inglés, a espera de una traducción que pondremos en nuestras páginas interiores

Así mismo os recordamos que desde que salió a la venta los Sims 3, tenemos secciones muy completas del juego, desde Servicio Técnico y Manuales y F.A.Q con los principales problemas y resoluciones, que vamos ampliando según se conocen, a toda una sección dedicada a vuestras dudas y a compartir vuestras fotos o curiosidades, una completísima zona de descargas para los Sims 3, así como secciones de retos y legacys que esperan vuestra participación.

El link original para ver este informe sobre los Bugs, lo podéis encontrar AQUÍ

The Sims 3 Bug Report

BUG A neighbor comes over to visit, then leaves and steals the active family's baby.

SOLUTION If a Sim is holding a baby and you ask them to leave, they will more than likely leave with the baby, and it will be removed from your family. Be sure to take your baby back before kicking them out of the house by interacting with the baby.

BUG Two of my Sims got married. One Sim had a bunch of money, and moved into her new husband's house… but now her money is gone!

SOLUTION When two Sims get married, their bank accounts do not always wholly combine. There is currently no workaround for this short of avoiding marriage entirely. All I can recommend is to have the poorer Sim be drawn into the richer Sim's household so there is minimal loss.

BUG Family bills keep rising when I don't buy anything new.

SOLUTION No fix currently. It seems that all objects on your lot work against your bills, so if a friend parks their car in your driveway, it works against your bills. More commonly, it seems your bills are partly based on how much money you have in your bank account, so if you suddenly get a quick influx of money—say, from a promotion—your bills may jump a little more quickly than you realize. This may or may not be a bug, but it's something to be aware of.

BUG My Sim owned a business and other items in his backpack, but he doesn't anymore. I didn't sell anything, so what happened to it all?

SOLUTION If you switch your active family, most of your Sims' inventory items will vanish. That can include deeds to businesses as well. Before switching families, be sure to empty all inventories into the house, even if you have to make a little one-off room.

BUG My Sim isn't dying from old age, even though he's older than the lifespan.

SOLUTION This is actually by design. The lifespan of a Sim, set in the options menu, is a minimum, rather than a hard number. By default, the lifespan of a Sim is 90 days; that means the Sim will live a minimum of 90 days (provided no disasters befall him of course). Some actions in the game can lengthen lifespan, so it's not impossible to see a Sim live to around 110 days even if his lifespan is only 90.

BUG After switching active families several times rapidly, the game doesn't update the family member selection part of the interface, so I can't select my active family members.

SOLUTION Simply go back to the main menu, and be sure to save. When you come back into the neighborhood, the game will have updated the interface correctly.

BUG I assigned my Sim a personality trait when he aged up, but it didn't appear.

SOLUTION I haven't personally experienced this aside from when children age up to teens, but it's been reported that it strikes other age changes as well. I've never seen this happen when Sims are aged up through birthday cakes, so a possible workaround is to just ensure you always give your Sims birthday parties. If your teens or children are hit with the bug, you could wait until they hit the next age, and the traits may correct themselves. If you're struck with the bug, there are two ways to fix it. If you're uncomfortable with cheating, then you can spend 20,000 Lifetime Happiness Points to get the Mid-Life Crisis lifetime reward. You can only do this once the Sim hits adulthood. If you're okay with cheating, the first thing you need to do is bring up the cheat console with CTRL + SHIFT + C. Then, type the cheat "testingCheatsEnabled on" (without quotes, but notice the space in there) to unlock some special commands. Now, hold SHIFT and left-click the Sim you want to alter. A pie menu will come up with two options: one to modify his or her traits, and one to force him or her to age up. After you alter things, you can do a "testingCheatsEnabled off" to disable the special commands if you so choose.

BUG After switching active families several times rapidly, the game doesn't update the family member selection part of the interface, so I can't select my active family members.

SOLUTION Simply go back to the main menu, and be sure to save. When you come back into the neighborhood, the game will have updated the interface correctly.