Problem
Objects in worlds start to clutter the world. These are items such as bikes, collectibles, plants, food and drinks. They can't be deleted as they are outside of a lot and even spawn on top ...
Ideas
Interesting ? Would you mind sending me your save game ? Like to check if these get added to the lot data as well.
Just upload it somewhere and DM me the link.
Unfortunately there's no good solutions on console. Only option is to either live with them or temp uninstall the pack, save the game without the pack and then reinstall the pack. You'll loose everything related to the pack.
Other option is to wait and play a new save game until EA finds a proper fix. Do try the workaround mentioned on the new save.