just started today after the most recent update. i'm on the test server in a sandbox private game on trinity point. all of a sudden it locked up on me. had to end process in task manager for both simcity and origin. logged back in, same result after a short period of time. the first time it happened i lost about 15 minutes worth of city. the second time i only lost about 30 seconds. it was the same the next 2 times also. after the 4th time i'm giving it a rest. seems to be freezing right around the same time as the savegame. not sure if it's the that's the problem, but it seems to be a pretty big coincidence. i put all driver settings on medium to low, turned off anti-alias. haven't had a problem with this happening for the first 78 hours of gameplay, not sure why it would start now, other than your most recent update.