Re: Sims 3 Store Items Won't Install into Launcher
@TroyLD Did you change your password and then clear Edge's Internet Explorer mode data, together? It's specifically the IE mode data that matters here.
On a separate note, you shouldn't need to login to the launcher to install Store content. What happens if you try to download the content without an active login? If you get the "you do not own this content" message, try downloading an item from its product page instead of your purchase history, and refresh the product page a couple times if you still see the error.