Hi
We have the "skip ESP" OMA-URI in effect already and it hasn't helped.
Meanwhile I did some digging in the registry of one of our affected computers and under Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Provisioning there were alot of keys labeled autopilot which I though was strange since we don't use autopilot. For better or worse I deleted those keys and after a reboot I was presented with a normal ESP which was skippable and the user could go back to work. This workaround seems to be effective on all affected computers so far.
Regards
Fredrik