I'm still new to the game and have some problems with the de jure drift of my duchies (or rather the duchies of my vassals). I'm currently playing the Emperor of Britannia, controlling all of Britannia and parts of France. Before I created Britannia my primary title was the Kingdom of England and the duchies that belong de jure to the Kingdom of Wales actually started drifting towards England. But after becoming the Emperor of Britannia the duchies are now drifting back towards Wales. Does de jure drift of duchies not work if the primary title is an empire? Is this WAD? Is there any way how I can get those duchies to drift into England while still holding the empire title?