This used to work, but apparently I've changed something.
I'm wanting to be able to preview 3mf files in File Explorer much file stl-thumb does for stl files.
Sometime before, this was working, but...

Sorry, yes, meant 'do not'. I type slower than I'm thinking so words get dropped :(

Thanks.

Unfortunately, by moving the drive from a direct connection (USB) to a network connection appears to invalidate the previous File History backup.

While Windows recognizes the folder structure as a...

OK. I set up another laptop and used a USB Flash Drive (32GB) formatted as NTFS and started a backup (which Windows did allow me to do - yay!)
Canceled the backup after some time, so I could move it...

Sorry, should have stated I am using "Back Up using File History"

If I test this using a USB Drive. Then this really will break the chain of history I have on my 4TB drive. So when I plug the 4TB...

Windows 10 Pro Version 10.0.19041 Build 19041

I have a 4TB USB drive I'm currently using for Windows File Backup.
I want to move this to a NAS Drive configuration using a Raspberry Pi using this...