Just finished my first playthrough since the latest patch, everything went very smoothly and it was quite enjoyable, though the Ilkhanate seems to never want to end wars even when it's leader has been captured and its warscore is at -100%, but I just ended their wars with the console whenever that happened.
On another note, the localized titles seem to mess with the EUIV Save Converter. For the most part its not very noticeable as most countries will just get whatever culture's natioinal ideas they need, and many of the tags convert over fine (France, Byzantium and England, for example), but some, like the Golden Horde, Serbia and my Scandinavia got converted over as new tags with their localized names, and Serbia for one had the boringly vague national ideas that don't correspond to any culture.
All in all, minor stuff and the game itself is incredibly enjoyable, so awesome work guys, just figured I'd let ya know.