This is the code I am using to configure and start autopilotOOBE.:

Write-Host 'Installing Prerequisites...'
Install-PackageProvider -Name NuGet -Force
Write-Host 'Installing AutopilotOOBE'
Install-Module AutopilotOOBE -Force
Write-Host 'Configuring Parameters'
$Params = @{
Title = 'TNU ITS Autopilot Registration'
GroupTag = 'FSA'
GroupTagOptions = 'FSA','ITS','SHARED','TWS','PROD'
Hidden = 'AddToGroup','AssignedUser'
PostAction = 'Restart'
Assign = $true
Run = 'NetworkingWireless'
Docs = 'https://autopilotoobe.osdeploy.com/'
}
AutopilotOOBE @params

Any device I run the script on will import correctly; but only with the Group Tag filled in in Autopilot Devices in Endpoint Manager. Checking back 20 minutes the group tag is now empty and that the computer name is now filled out. The Profile is unassigned.

(Wrong upload process)

If I'm reading this correctly: https://www.reddit.com/r/Intune/comments/pz8d23/update_to_user_enrollment_experience_in_autopilot/

Microsoft has removed the ability to assign users to a device in OOBE.

Should the option be removed here in AutopilotOOBE as well?