Help with multilanguage toolset

I installed NWN2 in English from GOG and i noticed that some options of the toolset are in the native language(Spanish) of my pc. This is mostly annoying when creating VFX since the translation isn’t accurate and i need to test each option to figure out what it is and make that process slower than it should.

I even changed my pc language to English and those part still are in Spanish.

Have this happened to anyone else?

Maybe you have any custom dialog.tlk file overriding the stock version. Did you install anything else (campaigns, modules) after? Or did you reinstall NWN2?
In my case, it’s rather the other way round: I installed a French version, but there still are some English captions here and there (either hardcoded in the toolset, or not translated in the French dialog.tlk).