Epic War Age (EWA) - Adapted Mod Collection

I haven't read all the pages in this thread, and it's possible someone has already written about this before me: in the original game's campaign, it's impossible to complete the first mission as a Necromancer. The enemy characters stand in the hero's path and don't move as they should (in the original game, they constantly moved from one place to another).
I haven't installed any mods on top of the assembly; I'm using EVE 2.7.1, and even after deleting and reinstalling, the problem hasn't disappeared.
Has anyone else encountered this? How can I fix it?