Error - "Failed to retrieve data for this request (Microsoft.SqlServer.Management.sdk.sfc)" while expanding the database in SQL Management Studio.

It seems that the SQL Management studio can not read one or more database or they are in offline mode. Hence, certain properties of databases are not getting retrieved. You can follow the below steps to resolve this issue.

1. Login to the SQL Management Studio and expand the databases.
2. Close the error message "Failed to retrieve data for this request...."
3. Press F7. It will open the Object Explorer Details pane.
4. Right-click the column headers, and make sure that only the following columns are selected:
Date Created
Policy Health
5. Finally, Refresh the Database node. You should be able to expand the database now.