Heroes VII

Hello everyone. I don't know how quickly I'll get a response here, or if I'll get one at all, but it's worth a try. I wrote about this problem to Ubisoft support, and they made it clear that this problem cannot be solved and will not be solved. The problem itself: I'm playing multiplayer with my brother, the AI takes its turn, we take our turn, everything is fine, but as soon as we clash in battle with each other, it shows him that it's my turn, and it shows me that his unit is taking its turn. At the same time, his first two units have already moved. What should I do? I would really like to finish that game. 😐
P.S. The game was purchased on Steam.