As noted in the 1.2 sticky at the top of the page, one should always start a completely new game after updating a Paradox game to a new post-patch version. So much changes that playing older savegames will cause problems, as the data in the savegames is based on settings in the old version of the game which may no longer be relevant to the newer patch.
This is good advice for any game you play from Paradox, not just HoI3. Always begin a new game when you update to a new patch.
This is good advice for any game you play from Paradox, not just HoI3. Always begin a new game when you update to a new patch.