Hello there!
We've updated to ZEN 24.2 last week.
Everything worked fine for a while:
Assigned Update to Primary Servers -> worked without problems
Assigned Update to a Testclient -> worked without problems
Assigned Update to more Testclients -> Update was assigned to ALL clients
So when we try to use: "Deploy System Update to selected devices in the Management Zone" our selected clients are ignored and the update is assigned to ALL clients.
Tried it with Edge and Firefox. Including cookie deleting and Incognito/Private-Mode.