Make sure the unmanaged disk is also configured and enabled for your Job Servers, as well. The Destination Job Server only helps to send documents directly from InfoView (via the Send button). Any scheduled report uses the respective Job Server (Crystal, Webi, or Deski) to send the report to a destination, so the Unmanaged Disk destination will need to be configured and enabled on the Job Server, as well.
The settings you want are on the “Destination” tab of the Job Server properties. If there is no Destination tab, then you’ll need to create a new Job Server, and add Destinations as an extension.