You know that part there where you click through the turns real quick? That's normally when I get a crash. If I click through the turns slowly it seems a bit more stable
That's actually one of the big 'under the covers' change. Before, unit movement was tied to the animations, so if you clicked TURN before all the units were done moving, the data would get de-synched (and all sorts of bad things could happen).
We've cleaned it all up considerably, so clicking turn like a fiend is officially an option (since the data can now keep up) 