_six wrote...
You should use NWN Explorer to extract the latest version of the .2da file you need from the "HotU Patch Data" archive.
I really wouldn't trust the source folder for anything. NWN doesn't read anything from there, it's just there so people don't have to access the main archives manually. Which means it's never updated for patches and may never have anything in to begin with - none of which affects the game's behavior.
See above for actual help