Hi TJCooperWhatever,
Thank you for posting in the Microsoft Community Forums.
Recheck GPO settings: Make sure that the GPO settings are correct and that no unnecessary groups are added to the local Administrators group.
Running gpresult /h C:gpresult.html at the command prompt generates an HTML report detailing the policy settings applied to the computer. This helps you better understand which strategies are being applied.
Relink or remove GPOs: If the problem persists, consider removing or relinking the GPOs from the OU that contains that server and check if the issue is resolved.
Check the system event log for details about any errors that may have occurred during Group Policy processing.
Best regards
Neuvi Jiang