I updated, put new tracks down and dropped a train down and the game immediately locked up. I had to crash the game to get out of it and reboot the game.

I just had a hard crash (SegFault) when I broke a belt leading into a corner, and replaced it with a splitter. The belt was loaded with coal at the time I broke it. I noticed some graphics artifacts when I was hovering over the belt piece I was about to break - the corner kept flickering straight ...