Another issue I've just noticed:
If the Snowy Escape EP is installed, sims will have a "Utensil Preference" option to choose whether they eat with forks or chopsticks, including servos. But servos don't eat, so for them this option is redundant and shouldn't show up.
By the way, I read the recent statement from the Sims 4 team about how they're going to start putting more effort into getting bugs fixed over the next several months. Well the Discover University EP would be a great place to get some work done, especially for servos as this topic demonstrates. So if anyone from the TS4 dev team is reading this, please help fix the servos!!!