I have a question about Caesar IV. It keeps crashing in a particular scenario, at the beginning of the Empire part of the game. Is anyone else having this issue?

I'm also wondering whether I can keep playing where I left off if I download and install Caesar IV on a different computer, or do I need to start over. (In particular, is my progress saved online with GoG? And if not, is there a way that I can transfer my game progress onto my new computer?)

Thanks for any help.