In the last few days any time a toddler ages up to a Child, no matter what trait I pick it does not show up in their Sim info panel. I even tried modifying the traits with testingcheats, it simply will not let me add a third trait. It will let me change the two that are already there, but even if I have three traits added in the 'Select Traits' window, only the first two will actually get added to the sim. I tried editing her in CAS as well, didn't work.
Anyone know of a cause or a workaround? I'm not sure when this started but it was definitely before the installation of Supernatural, and affect at least human and Fairy children. I don't know yet if the problem will continue when she ages up to a teen.