BMR backup is not updating restore images

Hi,

I have a Hyper - V core Windows and i am taking all guest machines of Hyper-V servers from NBU 7.5.0.5. I am taking a BMR backup in which NBU is taking all images of the Hyper-V guest machines and when i see in the backup images there are .vhd and .avhd files are over there.

Now when i try t restore this BMR backup all restored successffully but it does not restore .avhd files it means it only restores vhd files.

In short, BMR restores runs successfully but it doesnot restores updated snapshots of Hyper-V.

REgards,

Sajid