Failure when trying to do a second clone from one machine

[Will Power]

I need to make a total of 5 clones from a VHD, all with their own diff drive. See ​http://koussilicious.blogspot.ca/2016/12/70-462-training-kit-setup-preparation.html; these instructions are for Hyper-V but I thought it would work in VirtualBox.

I was able to successfully clone once. But when I did the second, I got this message:

Failed to create a snapshot of the virtual machine 2012R2Parent.

Parent UUID {00000000-0000-0000-0000-000000000000} of the medium 'C:\Users\Will\VirtualBox VMs\2012R2Parent\Snapshots\{a0565d45-af1f-44d6-809a-904e04b32f85}.vhd' does not match UUID {98edf193-685e-4931-8a08-66942b857091} of its parent medium stored in the media registry ('C:\Users\Will\.VirtualBox\VirtualBox.xml').

Result Code: E_FAIL (0x80004005) Component: MediumWrap Interface: IMedium {4afe423b-43e0-e9d0-82e8-ceb307940dda}

So in thinking it was that you could not have multiple clones, I tried a clone of a clone. The UI allowed this, but when clicking Create, I got a similar message. When trying to do this a second time to get the error details, the clone on a clone was disabled.

One thing to note is that, as soon as the above happened, the parent VHD was hopelessly corrupted, requiring the VM to be deleted and the VHD to also be deleted.