I have two not critical, but really strange issues.
First one: I installed the game, tried it and then decided to install a map mod. After installation I launched the game and there was a black screen with music instead of an intro video. Since then, I have reinstalled the game many times, but videos have not appeared. Fortunately I can skip them with Esc button. I really do not know what happened and how to fix it.
The second problem is worse, but maybe there is connection to first. Every 3-4 attacks the game blinks for 2-3 seconds, i.e. a black screen appears and I hear an attack sound. The black screen appears after the report of the fight, apparently during its closing. If I press a pause, the game does not blink, but after I press an exit, it hangs for 1-2 seconds and a windows throbber appears (which indicates that the program is not responding). It reminds me of a Panzer Corps that hunging for 2-3 seconds after almost every attacks and it was really annoying. On my ancient laptop everything is fine.