Yesterday, in the Novichok-Leto 2013 tournament, we faced CuC9CTbI with this issue: it's the final battle, units are moving, everything seems fine, but then chaos begins: the opponent casts slow – it shows as a mass slow on my screen, I cast bless – the mass bless animation plays for him. On my screen, the stack is affected by antimorale, on his – it's moving. No matter how many times we replayed, each battle ended with different stacks moving on our screens, and consequently, we had to alt-f4. Sorry, maybe this isn't the right topic, but does anyone know what's causing this? We both have the HD mod 3.47.
Yesterday, in the final battle, we had the same problem, a colossal desynchronization, we reloaded several times, luckily, the advantage was obvious, and in the end, we agreed that the final battle was just a formality, but overall, it was unpleasant.