Mod Mixing Problem

[unmerged(92061)]

In the past I have installed Mod 34 (0.50) and the New Nations Mod (4.4) with each other, but now with Mod 34 .52 and New Nations 4.5, Hearts of Iron stops working on the second loading screen . Any idea why this happens?

 

[The Great Duck]

Did you use an old savegame,or did you start a new game?