I have built created the image and have it on my Mds web server. After I do a clean install I run the don’t wipe workflow. It works for the most part, but doesn’t change the computer name and doesn’t join the wifi. Then I change the wallpaper and add icons to the desktop to change it up a bit. I run the wipe and install using the known username and password. When It boots up it only creates another drive with the renamed name and drives are empty.
try checking /var/log/install.log. It should give information why it didn’t install.