You try to boot Gen2 Hyper-V VM with Acronis Bootable Media
Media fails to boot with the following message:
The image's hash and certificate are not allowed (DB)
No UEFI-compatible file system was found.
Secure Boot is enabled on the VM. Secure Boot prevents boot from a Linux bootloader in the ISO file (the Linux bootloader neither signed nor certified by Microsoft).
This issue is not specific to Acronis Bootable Media.