crusad3rmike Are you saying Little Campers isn't loading in-game even though Steam says it's installed? If so, try manually deleting and reinstalling the pack. Make sure Steam and the EA App are fully closed and the EABackgroundService is NOT running in the Task Manager's background processes list. Open the install location, which is here by default for a Steam install:
C:\Program Files (x86)\Steam\steamapps\common\The Sims 4
Delete the SP33 folder inside. Then open the EA App and clear its cache:
https://help.ea.com/en-us/help/faq/clear-cache-to-fix-problems-with-your-games/
Open Steam and reinstall the pack, then see whether it loads in-game.