Edits to groups don't take effect
Problem: You edited or deleted a group in the Admin console, but your changes did not take effect.
Possible cause: The group you edited or deleted was originally created before you enabled the user-managed groups service. After you enable the user-managed groups service, existing groups can take up to 5 days to synchronize with the new service.
Solution: Check the group after 5 days to ensure that the edits or deletion took effect.