It’s doubtful it is directly linked to FOG. I believe it has to do with SYSPREP…
To update this:
We were able to isolate 2 registry entries that were causing the issue. The entries were for the DVD drive itself. Windows 10 was not recreating these entries after it ran sysprep and installed the new devices on the host system.
I have since ran a fresh install of Windows 10 on a separate machine (similar hardware). The DVD issues were not apparent after the fresh install. We were able to create new registry entries for the DVD drive based on the ones on the “good working” install of Windows 10. I was able to merge those registry keys onto a non-working Host. After that I removed / added the DVD drive. WIN10 recognized the DVD drive. DVD drive stayed installed after reboot. FTW! Hopefully that’s the fix for the rest of the machines we have with the issue.
Thanks for the moral support. Sometimes that’s all we need!