Whenever the game crashes while you're doing a war battle (which now happens once every few wars, thanks to how laggy the game has become in the last couple of weeks), you're thrown into a completely different fight than what it was before. Usually, the base has significantly more HP on its buildings left, while your bots have significantly less and some of them are just suddenly gone.
By some miracle I was able to still win each battle where it happened so far, but this together with lagging basically makes wars completely unplayable.