Very commonly when working with Azure-enabled objects, the following error message is noted in the Active Roles Event Viewer and/or Change History:
Administrative Policy returned an error. Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "ActiveRoles.Service.Azure.Errors.resources" was correctly embedded or linked into assembly "ActiveRoles.Service.Exchange" at compile time, or that all the satellite assemblies required are loadable and fully signed.
Waiting for a fix in a future release of Active Roles.