Hello there,
In some cases, when you have a large enterprise spread over multiple countries and time zones, there could be a significant replication delay between domain controllers. GPO mismatches in version numbers between the Group Policy container and the Group Policy template, or GPO mismatches between different domain controllers, can be expected due to a delay in replication.
Similar discussion here https://social.technet.microsoft.com/Forums/en-US/770bb835-0d39-4b99-b9ef-ef3cdb9a3a2e/sysvol-status-inaccessible-in-group-policy-management-console?forum=winserverDS
Hope this resolves your Query !!
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