This is generally occurring after I have been in the same game for a while, but I'll hit the 'Turn' button in the lower right hand corner at the end of my turn, and will wait for as long as 20 minutes, and it won't pop back up again to let me declare the end of my turn again.
Any others having this problem? If I quicksave and exit, then come back, it lets me take a few more turns before the same problem occurs.
Please advise.
Thank you,
Fenrus Starwind