Ok, so from about 3-4 hours later, it’s still not possible to download anything, either from The Exchange or the Store, or even items in your Purchase History, which is NOT a good sign.
The Launcher never throws up an error either, it just simply waits in the background as I’ve attempted to try downloading things from my Purchase History and something from the Exchange, while my items from the Purchase History never showed up, the Exchange item did after a couple of minutes of waiting, but the download as of writing this was not able to start, the icon in the status simply showing as 3 blue arrows. I have also attempted to download another Exchange item but again, 3 blue arrows and the download never started.
Trying to save the file rather than attempt to add it to your game directly, brings up (in Firefox for me) that the server could not be found. Fingers crossed this may just be temporary maintenance but this does not look good at all…
I’ve also noticed in my Sims3LauncherLogFile that the latest log is “Exchange Download Failure”.