@DustinB
As to why you're seeing "VM not found!" I don't know if that is a XO alert or something you added into the screenshot, I've never seen that so I can't speak to it.
I didn't add the text, all I did was highlight it with the red surround.
Just testing the backups again using the 'Delta' method and '[NOSNAP][NOBAK] Data drive' as the name of the second drive , feeling more hopeful about this one though.
I'm starting to like XO the more I use it, would be good to move to this instead of switching between 2 different XCP-ng Center EXEs. depending on the XCP-ng version on the host so I really hope I can get this to work.
The scheduled hourly snapshot while the guest is running looks a great feature, although I need to learn to walk with this first before I go that far 🙂