For a template, you'll definitely want to use local admin credentials, so let's make sure those are assigned properly. Open the Machine Group those templates are in and click "View in Machine View", then find those machines. You can double-click them individually to bring up Machine Properties, or select all of the templates in question, right-click, and choose Machine Properties. Make sure the "Credential" listing has that local admin credential specified and click Save.
Try scanning and deploying again and see if that resolves it. If not, click Manage > Credentials, double-click that admin credential and re-enter the password just to verify. Test again, and if it still doesn't work, I would recommend opening a support case and we can help dig into it with you.
I got this working, checked admin credentials and added in .\administrator and this resolved the issue.
It was previously using just administrator.
Hope that helps someone.