I have been playing the new DLC as France, purchased from Gamersgate, with the latest patch.
Twice the game has locked up when resolving a battle. After the battle display disappears, a telescope appears as the cursor, and nothing happens.
Then, none of the controls of the game work. There is nothing you can do except control alt delete and close PON.
I do not think this is saved. This does not happen every turn, but happened in two of the eight turns I played.
Each game was lost. If you want to recreate the bug, I think it can be done by playing France and ending turn a few times.
This needs to be fixed, as it is ruining a fascinating and challenging scenario.