I purchased outdoor living and design & Hi tech stuff. Once installed, i started my game to find a lot of CC missing. In the launcher, it showed a lot of my CC wasn't installed, when it was previously. So got the launcher to reinstall the CC. I always delete all the cache before launching my game, which has never affected my Cc before. I've just gone to load it today, and it's happened again, even though i reinstalled all the cc and have played the game fine. How can I stop this happening and why is this happening?

Because the launcher sucks. Which is why i convert to packages when possible. Honestly nut sure why it does this and I can't recall seeing any solutions on it but I have had it happen before with Sims 3 store stuff.