How are you applying drivers?
- Apply Driver Step during WinPE
- Packages with Setup Based Driver Installs from Vendor (Blue Tooth type Driver Installers)
- Vendor Tools (HPIA, DCU)
Have you confirmed that the driver that is being installed at first logon is something you were installing during the TS? Or is it a newer one coming down via Windows Update / Windows Store? Perhaps after OSD, disconnect device from network right away to ensure it's not pulling something down in the background. Then logon and see if you have the same behavior.