When you have a custom token for your name or OU placement setup in your custom unattend file you will see that sometime those tokens do not populate, or come out blank and cause the machine to not be setup correctly. You can find this issue by looking at the unattend copied into automation located at \Windows\Panther\unattend.xml.
An issue where it sometimes wouldn't process that section of code when running a deploy.
For 8.5 apply TECH251651
For 8.5 RU1 apply INFO5299
Fix will be included in 8.5 RU2 code.