Did they eventually fix the game desync bug that would happen when you have a multi-core CPU?

We used to play Generals at LAN parties all the time - but once multicore CPUs hit the market, it was difficult to just get to the end of a game, because peers would desync and you'd suddenly find yourself playing singleplayer. Its clearly some race condition in the game engine which makes the game non-deterministic in a multicore situation. Does anyone know - is that still a problem?