Originally Posted by
artabazanes
I tried some custom battles. Certain units cause CTD when the battle is loading.
e. g. Austria: croatian musketmen, Rgt. Altheister, light pikemen late
France: Landsknechts, heavy milita, provincial line infantry
Sweden: Jaegers, English musketeers
Are you sure you have installed the patch? The patch has to be installed after you install the core files.
I just tested Alt Heister and the light pikemen as Austria now and they work for me (see below):
Also try running Steam as Administrator in case its that sort of issue.