3 months ago - AndrewT - Direct link
No real idea what could cause that. Any mods involved?

Was your clean reinstall like this?

- move any valued save games elsewhere
- "uninstall" in Steam-EU4
- manually delete both the Steam/SteamApps/common/Europa Universalis IV AND Documents/Paradox Interactive/Europa Universalis IV folders - In particular make sure there are no files or folders left under either the Steam EU4 or Documents EU4 locations, before installing again.
- re-install game in Steam, run a Steam Verify when done.
- start the game with no mods active and test

**File Locations on Mac OS X**
The executable and DLC folder are in Users/USER/Library/Application Support/Steam/SteamApps/common/Europa Universalis IV/
To see it go to the Finder, hit command-shift-G (ie Go To) and type in ~/Library/ .
The user files (settings.txt, error logs, saved games, gfx, mods) are in /Users/USER/Documents/Paradox Interactive/Europa Universalis IV/ .  
3 months ago - AndrewT - Direct link
Hmmm. You might try a Disk First Aid from the Disk Utility in MaOS.