This hotfix restores cross-platform MP, along with rectifying the US Civilization progress loss error for most players. If you still run into issues after, please contact support here.
Hello everyone. We are aware of an issue with the United States Civilization in Age of Empires III: DE and have issued a rollback on steam for the time being. Due to this, multiplayer will be temporarily desynced between Windows and Steam while we further investigate this issue.
If you have lost progress on your challenges (Steam only), please try the following steps:
Close Age III: DE and Steam.
Open Steam and check for the rollback update (23511) to install
Open the game again and check US Civ challenge progress.
If that doesn’t work or you’re on Windows Store, head over to [support.ageofempires.com] and submit a support ticket. We will continue to investigate this problem as quickly as possible and appreciate your patience as we work towards a solution. Thank you!
Further updates will be posted on this thread.