Old Users still in Astaro (AD + Basic User Authentication)

Hi there,

we have a AWG Appliance with v7.511 running with AD Basic Authentication (no SSO). Everything works fine, but we recently deleted a AD-User in the Domain Controller but it is still in the Astaro. Even after a Reboot of the Appliance and flushing all prefetch and Auth-Caches the old User is still on the Astaro.

Does Astaro not sync with AD in this case?
Do I have to delete an old User in both (AD AND Astaro)?

Regards,
Chris