Market Pack items missing completely in-game (CAS & Build Buy)
I purchased several market packs and have been using these items for a long time without any issues until about two weeks ago, when everything was still working normally. However, when I launched the game today, I noticed that all my market packs stopped working.
To be clear, I verified in the game's download manager that all these market packs are fully downloaded, but inside the game—whether in Build/Buy mode or CAS—none of the market pack items appear at all.
I have already tried removing all Mods, clearing the cache, and repairing the game, but none of these steps helped.
I found a solution that worked for me!
https://forums.ea.com/discussions/the-sims-marketplace-discussion-en/my-marketplace-content-disappeared-after-upgrading-my-pc/13762665