Several requests were made from IT Shop for Active Directory (AD) group membership and they were approved, however, the "Memberships" tab for the groups states "Assignment by request but not applied yet".
Why are the changes not being applied?
The job service on the SQL Server did not start following patching on that system.
Ensure that the job service that the SQL server uses is running.
Confirm that the jobs in the job queue are not in a "FROZEN" state. If so, it's an indication of an error related to the job.