I’m not sure to what extent this is a known fact to experienced modders already, but I as a player was completely oblivious to it until now: apparently the EE doesn’t just override default files with everything it finds in the “override” and “development” folders, it seems overrides can also be hidden in other folders like “music” and “ambient”, so just clearing your override folder might not remove all changes you made to the original game after all.
The two cases that made me realize this were:
D20 Modern Haks 2.2, which puts a sound “it_materialcloth.wav” into the Documents/NWN/ambient folder that will replace the sound for equipping armour not only in modules using the D20 Modern haks, but globally in all modules (it’s the sound of a zipper).
The Witcher music pack, which I installed as required project for a module I was testing and which apart from all the music files also contains an ambientmusic.2da that even when unpacked into the music folder, will globally change music for all modules.
As someone who likes to stay in control of overrides, I find that a bit worrying … Are there any other folders that allow the contained files to override default content?