I own the Sims 4 and I recently transitioned from a windows pc to a mac. While downloading all my packs I noticed an error- the jungle adventure, luxury party, and fashion street kit were not downloading. I believe that since I redeemed these during the Epic games giveaway, there is some sort of error getting them to switch to the EA app for mac. Several people in online forums seem to have also run into this, stating that when they had origin for mac there no issues, but since the transition to the EA app for mac they have experienced the same thing. (to note- I used these packs with no issue when I had them on my Windows EA app). The rest of my pack have also installed just fine.
