Today we are announcing the availability of quarterly Cumulative Updates (CUs) for Exchange Server 2016 and Exchange Server 2019. These CUs include fixes for customer reported issues, all previously ...
Updated Jun 29, 2021
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We are also having the issue many here are describing.
...read object CN=AdminSDHolder,CN=System....
...System.NullReferenceException: Object reference not set to an instance of an object....
Our install is English, so I do not believe it is language specific.
We are running Exchange 2016 Update 20.
Our Domain Functional Level is Windows Server 2012 R2.
We are setup in a hybrid environment.
The last SU installed was from May 2021.
I have tried every known trick in the book at this time.
I am personally guessing that there is a mistake in the Check Permissions PowerShell script but I have not gone through any of the scripts yet. I am half tempted to turn on for a few minutes the Transaction Log recording so I can see just what and where this thing is going wrong.
I will be asking the organization to open a ticket tomorrow but I am unsure if they will go for it.
Definitely looking for Microsoft to come out with a fix. I did not want to apply any other SU until we applied the latest CU.