Admin password not defined when assigning new device

When assigning a new device to an account (via Hardware - Configure your hardware - Provision my device), after returning to the hardware tab, the device appears to be assigned properly, however the 'Admin Password' field is blank.

I was able to type in a password and resync the device in order to assign an admin password, however it is unclear why the original assignment and provisioning resulted in a blank password field.

I should be able to provision another device this weekend and identify if I can re-create this behavior.