This is the reason why i quit playing this game months ago. Today i found out that uninstalling graphic driver, restarting system helps to fix the problem temporary, but it's no long term solution because i managed to launch 1 battle before graphic driver somehow kicked in. After that i intalled latest graphic driver and switched to integrated graphic card and it worked, but with terrible graphics.
So, any one knows how to run the game with the main graphic card? P.S. I have active ticket in H&G support center and im still waitig for an answer from H&G devs.