SQL Server Replication代理安全设置错误

Question

当我尝试在合并复制发布中更改快照代理的帐户时，我收到此错误：

Cannot save changes to agent security settings.

An exception occurred while executing a Transact-SQL statement or batch.      (Microsoft.SqlServer.ConnectionInfo)

The current transaction cannot be committed and cannot support operations that write to the log file. Roll back the transaction.
The current transaction cannot be committed and cannot be rolled back to a savepoint. Roll back the entire transaction.
Changed database context to <removed>. (Microsoft SQL Server, Error: 3930)

该帐户对disribution数据库和源数据库具有db_owner权限，并且还具有对复制共享的完全控制权。我也尝试使用域管理员帐户进行设置并获得相同的错误，因此我认为我已经排除了权限问题。