"Hello, I had the same problem. This problem appers, trought the Windows 10 Apps, which are installed per User / User Profile. In one of your user accounts, is the installation (upgrading) from this apps not finished. That is the problem. Windows needs for sysprep clean user profiles. The easiest way to solve this, is to create a new local admin account. After this, you delete all other accounts and profiles. Then you test the new admin account and if it work, you can shutdown the virtual machine. Then you convert the machine to a template and starts the cloning. Now should the cloning prozess work."
This worked for me.