Can't bathe infants

Since having downloaded the most recent sims 4 update, I have been unable to change a newborn's dirty diaper. I've figured out a workaround (change the newborn's outfit), which is fine, but now that the newborn has aged up, I can't bathe her at all. So, that leaves her vulnerable to being super gross but also there's no way to fulfil the first bath/bubble bath milestone. The action cues in the parent's action list, but then the action disappears and the parent places the infant in the crib. I've restarted the game, reset the sims, created a new household, but I'm stuck with the same issues.