AI launched surprise attack on me.. for the next 3-4 turns it dropped Paratroopers on Resources and pillaged. Problem is - the paratroopers the AI drops are INVISIBLE. I see the animation from the planes, but no visible unit appears. THey are there though, as I can see their stats when I mouse over and I can attack their hex tile. Any of my units that attack the hex also get visually bugged. Does not happen to my own paratroopers - only the ones the AI drops.