Enemy ships not firing + game stuck in "Battles"-calculation

[Mortrag]

(I already wrote that in Steam, but in case you're not monitoring it there.)

I played a battle in the campaign (Japanese vs. Chinese, 1894), but in this battle, the whole enemy fleet didn't fire a single shot. They drove straight towards my fleet and when some ships came close enough they fired their torpedos. But until the end of the battle not a single shot of a main gun or secondary gun was fired.

And after this battle, the game got stuck in the "Battles"-calculation for over 10, 15 Minutes. I could access the menu and close the game that way, but the campaign wouldn't progress.