Steam's working fine, checksum's fine, everything's fine, but 'EU4 is running mods or altered in other ways' even though it isn't.
All that means is that the game does not qualify for achievements. For that it has to be in Ironman mode AND be started at the first date 11/11/1444. The message there is made more useful in the next patch.Steam's working fine, checksum's fine, everything's fine, but 'EU4 is running mods or altered in other ways' even though it isn't.
And I'm having the exact same problem since today. My ironman saves don't load, ironman is no longer an option in the menu (greyed out), while I have the correct checksum and I'm able to save regular games on the cloud.
If that helps last time I played I stopped cause I think steam cloud went under maintenance during my play.
I did several restarts of the steam client, verified steam-cache integrity on each startup and then started the game out of steam.
Eventually it fixed itself, no uninstall/reinstall required.
The steam services on http://status.steamdb.info/ did not report any issues.