Can i ask:
Is this a market place or non markeplace vm you are using for the image?
Is it only W10 you get the issue with?
Is it a single domain set up?
Does the Domain Join account have the correct permissions on the Target OU?
Horizon Cloud Azure has now lot of fixes and improvements. When. you proceed the workflow "import a VM from market place" using horizon administrator console, it will prepare the VM automatically that is ready for publish.