I have found a ( so far reproducable) bug.
My neighbor nation has a city of which I can see only part - not the "actual" city square. I can still select this city and see the options. However, if I try to click "details" then the game crashes. Please take a look.
I will in the meantime look for a way to attach my savegame.
[edit: still no attachment option. should I just send it via email to you guys?]
