On this page you will find lists of our fixed objects, when a new patch/EP breaks them
We never put a file as "fixed" without proper testing, that's why it takes a bit longer to perform.
Once the game breaks a content, we test each piece carefully and fix them updating for the new expansion packs or patches.
However you need to re-download the fixed versions and replace the older ones for the newest/fixed versions. If you keep both versions of a piece on your game, it will read only the older version, which is not what we want.
Sometimes things go wrong because the older versions are not properly deleted/replaced.