about 1 year ago - AndrewT - Direct link
Is this with a save/campaign that was started under a previous patch? If so, best to revert to that patch in the Steam Betas tab for this game, to finish it off.

Then you can opt out of that older version back to the current version, to start a new campaign.

All the best!  
about 1 year ago - AndrewT - Direct link
I have to admit I was surprised there was no mention of compatibility in the 1.10 release notes, not that I could see anyway.

I would say it is common for a major patch (such as 1.9.x to 1.10.x here) on any of our games to not be 100% save game compatible, though. Normally minor patches (1.9.1 to 1.9.2 say) aren't such an issue.

I do apologise for the effect on you!