Well, I think we'd know if everyone was getting this! The game would be literally unplayable.
Please try a **clean** reinstall:
- Remove the game from Steam (uninstall)
- Manually delete all these files and folders, if still there:
...\Steam\steamapps\common\EmpireOfSin\
...\AppData\LocalLow\RomeroGames\EmpireOfSin\
(first move the \GameSaves\ folder elsewhere to keep your save games)
(To see the AppData folder you'll need to enable View Hidden Items in File Explorer)
- Install the game again and test this problem with a new campaign, NOT with any existing one.
Good luck with that!