Exchange Management Shell and Mailbox Anchoring functional change in Microsoft Exchange 2013 CU11 (4334073)

In CU11 of Microsoft Exchange 2013, Microsoft introduced a functional change to Exchange Management Shell, also known as Remote PowerShell for Exchange:

Exchange Management Shell and Mailbox Anchoring

This functional change caused unexpected issues in many applications when working with mixed environments, and the behaviour was reverted to match that of previous versions in CU12:

Remote PowerShell Proxying Behavior in Exchange 2013 CU12 and Exchange 2016

Since Active Roles uses Remote PowerShell to communicate with Microsoft Exchange 2013, this functional change causes unexpected behaviour when Microsoft Exchange 2013 CU11 is present in the environment. This can manifest in several ways, including but not limited to:

• an inability to update or create new Exchange objects
• incorrect Email Policies being applied
• extreme latency when working with Exchange