Hosfac, the baby swing didn't come with Generations. You have to buy it separately from the store. Don't let your Sims put it on fast speed.
Luckily, I'm not having any problems getting the infant out of the crib.
Achievements show up right away in-game, but it seems to take a while for the badges to register on My Page.
The newest glitch I've discovered is that my two newlyweds didn't get any wedding presents. Their mailbox said they had mail, and they had to write thank-you notes, but there was nothing in family inventory. I'm not losing any sleep over it, lol.