Books and toys disappearing

I have noticed a new issue in my game regarding books, kids' toys, and pet toys purchased by a member of the household. A sim will purchase books/toys, and the items will be placed in the bookshelf or toybox. However, if I leave live mode on the current lot in any way, such as by entering CAS or travelling to a different lot, the items will be missing upon return. I will click "open" on the bookshelf/toybox, and it will be empty.