Assume that you have an on-premises, hybrid deployment of Microsoft Exchange Server and Microsoft Exchange Online in Microsoft Office 365. Additionally, assume that the hybrid deployment server is running Update Rollup 1 or Update Rollup 2 for Exchange Server 2010 Service Pack 3 (SP3). When you try to add an additional domain name by using the Hybrid Configuration wizard, you receive the following error message:
Objects added to a BindingSource's list must all be of the same type.
This issue occurs because of an undetected internal failure encountered after a new feature was added to the Hybrid Configuration wizard during the development of Update Rollup 1.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.