@cherpar and Tangie - I also got the notice about a store content patch and I disregarded it knowing the
last store patch was released February 12, 2013 and I installed it soon after that. I remember this patch specifically because it was a very small one but it included updates for some of the store clothing to be used as outerwear for Seasons.
I can't speak for anyone else but seven times the Launcher generated the duplicated .tmp files in my game. Bypassing the Launcher with the base game executable creates no .tmp files for me and is much, much faster for loading the game.
I would have no idea about missing content - I
rarely have a problem with that, but like you, Tangie, I own so much of the store content that it's really hard to tell if something has gone missing.