I just upgraded Civilization VI to 'Rise & Fall', and the My2K cloud save was working before I installed Rise & Fall – but now it isn't.
I have tried exempting the Steam folder from Windows Defender – and turned off the defender firewall – neither helps. I also tried closing and re-opening the program.
Best Answer
The OP stated in a comment that the issue was resolved the next day for no apparent reason. It might be an issue with the cloud save servers, meaning a possible solution is simply to wait.