On the top of my head, there could be two possible issues.
Are you in an edit session when you are running the batch job? Not that this is an issue. But if your Reviewer workspace is in a different geodatabase than what you are editing, then this could be the issue.
If the Reviewer workspace is in an enterprise geodatabse (as Kumar questioned), are the permissions set up properly for each Reviewer table? Refer to the link that Kumar provided.