Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Mods Retroactive additions to main campaign?

The general rule I've observed is that the game reads mods from \Documents\Larian Studios\Divinity Original Sin\Mods\%yourMod%.pak and Divinity - Original Sin\Data\Mods\%yourMod%\*.
However the editor and the game seem to work differently, as one will work with a setup the other won't.