vCloud Director quarantine does not work

Hi,

i'm having problem to activate the vCloud Director (vCD) quarantine function. I'm running the vCD version 5.1.2 and i have mark the checkbox "Enable upload quarantine with a timeout of xxxxx seconds" under system->administration General in vCD (see attached picture Picture-01.png).

When e.g. a ISO file upload is finished, the ISO file is immediately available for all users able to access the catalog where the ISO is uploaded (see attached picture Picture-02.png)

What am i missing here?

Thanks

/Magnus