Both VMs had a reboot condition that they needed, but even after reboot I have a fail.
I watched this one, snapshot and transfer all went fine, during the import stage it only got to around 30% and then failed out and all the IO dropped off.
These are the only two VMs that I can't backup with compression due to the large amount of empty space on the disk. It's an old problem and I'm not sure it has been fixed. I may try setting zstd after lunch and trying again. If that doesn't work, it's a tomorrow problem.