"Xbox Live error
There was a problem loading your data from the cloud
Please check the Microsoft Solitaire Collection FAQ at
https://aka.ms/mssolitairefaq and refer to error code:
121003"
I've done that, no help to receive there. No one seems to know what the error code 121003 mean so I'm wondering why you are creating error codes that you don't understand yourselves?
I have been having same problem for past 24 hours, I have closed the app, uninstalled the app and rebooted and still get error, have even tried another device and still cannot resolve this problem