Hello, JK,
Yes, sure, here is my "test" image, the backups on my external drives contain the same partitions:

I have used the same definition files for a long time. Here is a screenshot of my local disk as if I were to "Image this disk" they do match:

Edit: I should probably add I'm on the latest version v8.0.6560
Edit #2: Sorry, not trying to nag people on this, but I've been thinking, I had previously contacted support because I was having a lot of issues with BSODs using viBoot/VirtualBox, and it was recommended to add some registry tweaks, which did help with the crashes, but could they also be causing this error? The registry settings were:
REG ADD HKLM\System\CurrentControlSet\Services\MRCBT /v ExcludeVHD /t REG_DWORD /d 1
REG ADD HKLM\System\CurrentControlSet\Services\MRCBT /v ExcludeUSB /t REG_DWORD /d 1
Is anyone able to confirm or deny this? That is the only noticeable thing I've changed. I'm not sure what the default values for those settings are, or should I be contacting support directly about this?
Many thanks.