I am really sorry to bother and use this subject which is a bit old now but strangely, I cannot post a new thread on the forum :(
I have the exact same problem as the author of the thread. I have the base game and the late night expansion downloaded, I have bought a few items from the official sims 3 store and run a few operational mod. My RAM is purged and there is space on my computer.
However, I cannot see my CC content at all in game. I have tried to move the sims 3 folder to my desktop so my game would re-create new files and tried to download my CC content again from the store but it doesn't show in game anyway. More particularly, I used to play in version Roaring Heights where I've built a lot of new places and venues and personalised everything, invested a lot of time in it, and now I cannot play this world anymore :(
Do you have any idea what I can do in order to make my CC content work again?