Greetings!
Doing some quick research, it appears there is a problem with the CopyProfile Unattended functions with Windows 10:
It seems the issue is cause by the CU (Cumulative Update) being applied, or a couple of updates, two that are indicated are: KB3093266 & KB3081449
The issue is not with Deployment Solution, but with the Microsoft Sysprep tool, and updates from Microsoft causing havoc with the Sysprep function.
https://social.technet.microsoft.com/Forums/en-US/db2d6f8d-f909-4191-a870-70846bc15135/windows-10-roaming-profile-issue?forum=win10itprogeneral
https://social.technet.microsoft.com/Forums/en-US/39659172-1917-4796-9c2e-9b1adfeced86/win-10-unattendxml-copyprofile-true-breaks-search-bar?forum=win10itprosetup
Regards,
Russ