Get Together appears to not be installed

Hi,

I just reinstalled the sims 4 to get Cats and Dogs to work. When I open the game, it looks like I have every pack installed (which I do) but when I actually play the game, it looks like Get Together and all the stuff packs that came with it are not there. Last time I re-installed (last week, lol), it was the same thing, except it only didn't recognize the Toddler Stuff pack and I thought I'd just forgotten to install it. I definitely did not this time, though. I also got a pop up both times that said that my packs are being downloaded the first time I played, which is probably related. Any idea how to fix it, please?