P2V of SBE 2016 won't boot

Hi,

I have an SBE 2016 Server running on physical hardware. I am trying to P2V it so that it can be run as a VM
on a 2019 Hyper-V host. I have tried various ways to P2V the SBE 2016 Server using Disk2VHD doing it as a
VHD or VHDX, but when I build a new VM on the Hyper-V host and attach the imaged VHD/VHDX it refuses to boot.

All I get is black screen with a flashing cursor about 4 lines down the screen. If I mount the VHD's in Disk Manager
on a PC I can see the contents of the VHD's fine.

Anybody have any suggestions how to fix this?

Thanks

DB