Hello, Is only SubmitChanges failing? Have you tried getting data and is it working normally ? From what I see here is the provider connection string encoded in the Entities connection string is missing "Server=" before the "tcp:vm64tzkr0o.database...". And also what is the error?
I am using .NET Ria but with POCO and it had some issues only with SubmiteChanges, it wat throwing some nullreference exception, but since I use POCO I had my own implementention of service operations and my overrides work quite OK.