Bug: Difficulty settings not loaded with savegame

We played a multiplayer game with custom difficulty settings. Then we loaded another multiplaye savegame (different party, different people playing) . The settings were showing the non customized difficulty setting (authentic). However, the actualy settings werre still the ones from the old party (customized). We realized this, because we saw the simplified encumbrance in our inventory after loading the game with the "authentic" rules. Expected: When loading a game, the difficulty settings are properly restored from the savegame.