KES Mac 11 - Update not working

[edvkservice]

We updated our MAC Clients to KES 11.0.0.501 with Agent 11.0.0.23 but on one Macbook the Update task it not working. The update will be started but it finishes after a few KB. It still has the database version from 17th July 2019. It worked fine on all other Mac clients. We already tried to re-install the applications and also deleted the Kaspersky entry from /Library/Application Support/. The connection itself to our KSC is working and I can see the Macbook. We have configured our update task to get updates from Kaspersky-Lab-Update-Server. We tried also to use KSC as the update source but there was no difference. Any advice?