As Merc said, this is a symptom of having the game update, and people going "omg my UI's back to original, I'll just throw in the version I downloaded the first time". Completely disregarding that *something* must have changed in the update - or else the file wouldn't have been replaced, dur - and therefore it probably won't work right. And that *kinda* works, but it results in problems with stuff like this.
Moral of the story: if the game updates and results in the UI and/or icons being changed, don't just throw in the previous UI/icon version from pre-update. Get the *new* one from Brandson's LJ (he generally has it updated before the servers are even back up) and throw *that* in.