Sims2 Game not loading Kitchen & Bath Stuff objects

I reinstalled the UC on Windows 10 a few months back and managed to get everything running, but I noticed a while ago that the K&B SP objects have disappeared from the catalog. The walls, floors, hairs and clothes from the same pack are showing up just fine, and interestingly, so is a CC painting repo'd to the "View from a Veranda" painting that came with K&B. I found this old MTS thread from someone who seems to be having the same problem, but no solution was given. I've tried running the game without CC with no luck. Any ideas what could be causing this?

Have you tried Repairing via Origin? I would also make sure you have enough free HD space, as windows may remove things in no particular order.

I don't have the game installed via Origin, so unfortunately that's not an option. I have 720 GB of free space.