Bruce and Richard have it correct in that a Group Policy needed to be added. Adagio needs to document this and make this a known issue, with the solution readily available as an Adagio Consultant would not have access to make these changes.

So here is the exact fix we applied:

GPO created on server and enforced on affected computers. Computer Configuration/Policies/Administrative Templates/System/Group Policy/Configure Drive Maps preference extension policy processing: Allow Processing across a slow network connection: Enabled, Process even if Group Policy objects have not changed: Disabled (although I believe this has no impact on the issue, and finally Background priority: Idle