I don't have the freezing, but my wife does. I am crashing more and more frequently during Friend visits though. I'm lucky if I can get three towns. Mostly right between towns after the first visit. I am SO glad I didn't buy the license, it would've been useless.
We've both disconnected our tracks and her freezing has nearly stopped in her SF, but we both can't do visits. Sorry Neighborinos.
What good is this beautiful monorail if we can't have it running?