Error: "Failed to collect Calendar: Code : 0x80047f0b,Description : (null)" when collecting from Exchange 2016 Calendars (4221923)

You see the following error in the Events Node and in the CalendarSender.log when attempting to collect Exchange 2016 Calendars:

Failed to collect Calendar: Code : 0x80047f0b,Description : (null)

WORKAROUND

1. Open the Registry and navigate to:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Aelita\AelitaCollaborationServices\RpcHttpProxy

Note: If RpcHttpProxy does not exist, create a new Key and name it RpcHttpProxy

2. Add the new string value. 
Name: PermanentProfile 

- the value will be is your profilename of the outlook profile name that is working with Collaboration Services

3. Restart the Quest Collaboration Services Synchronization Service

STATUS

Waiting for Fix in a future release of Collaboration Services