@theopenem_admin I have been able to confirm that an image run with iPXE on the same machine with the same BIOS settings will boot direclty to the deployed OS on automated post-image reboot. I was able to monitor the run and verify that it was not going into PXE and coming up against the iPXE boot menu timeout.
Again, not sure what the trigger is, but it seems to be isolated to the WIE.