As far as I know, I'm fully patched. Installed Supernatural, ran the launcher, installed any patches that came up... which I think was none. (Had to patch before it let me install Supernatural.) So, I'm pretty sure I'm good there. Then closed the launcher, and used basbas' AwesomeMod Updater to install the current test version, which it usually yells at me if the versions aren't the same.
This is exactly my case. All patches, Supernatural installed, no other CC -outside EA store items, which are not exactly CC-, last TEST version installed through AWSmod updater. Neighbourhoods don't load fully, they freeze at 99%. That is, the loading circle continues to go round, the game tips continue to appear one after the other, but it can go on like this forever. At least, for over 30 minutes last time, until I get bored and stop TS3 running.