Well, problem appeared again after chosing "leave city". I am attaching the file to this post.
Btw. I have one more question - I have all graphic details set on "low" and 200Mb/s branwidth internet connection (That excludes lags for me) and during the PvP battle I have problem with even moving my army (slide show, half my orders is not displayed on the screen) while my enemy (we fought like 3 times in a row, he was attacking my armies one by one) was moving smoothly. Where is the problem?