Require TPM backup to AD DS checkbox missing

[SarumNetworkManager]

Hello,

 

I'm in the process of creating a GPO to save BitLocker and TPM information to AD but am having a problem with the TPM options. I can see the Turn on TPM backup to Active Directory Domain Services which I have enabled but I don't see the Require TPM backup to AD DS checkbox in the options pane.

 

My DC is on a Server 2012 server. The account I'm using is in the Domain Admins and Schema Admins group. I have run the Add-TPMSelfWriteACE script which appeared to run correctly.

 

Any ideas why I'm not seeing the checkbox?