I recall seeing somewhere that these bug reports should be posted in separate threads as they can be caused by a multitude of things.

Significantly I had just transcended into Spanish.

This is playing the Summer Heat scenario.

Teutons Turn 70.ctr

auto-save 20960.ctr

EDIT: So this morning I was able to resume the game. Last night I got spinning disk and thought it was a good time to stop and go to sleep.