Windows Dual Boot VM - Screen Flashes White and then Monitor Disconnects Shortly after login

I have had a dual-boot, NVMe passthrough Windows VM (following SpaceInvader One's instructions) that ran fine for years. Recently I upgraded to Unraid 6.12.4. I had a few SMB issues with that version, so I rolled back to 6.11.5. This appeared to break the Windows VM. I could log into Unraid fine, but any time I would start up the VM, the screen would go black. So I wiped the USB drive and started a fresh 6.12.4 boot and rebuilt the windows VM. The data array was never changed in the process.

With the new build, I am now able to connect to the windows VM and see it on my screen for a few seconds (or sometimes a minute or so). The screen may flash white once or twice before coming back, but then the screen eventually loses its connection to the VM.

I am admittedly in over my head in reading the syslog, but this appears to be the error that is happening after starting the VM:

• Tower root: Error response from daemon: network di-6ba07cea1c77 is already using parent interface br0

The following error also repeats itself several times, but I believe this is before the VM is started (and I am not having any problems with the Unraid GUI as far as I can tell):

• ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.SAT0.PRT0._GTF.DSSP], AE_NOT_FOUND (20220331/psargs-330)

Google searches of these error messages haven't helped me much.

I would be eternally grateful if someone could take a peek at the syslog file to see if there is anything simple I am missing. I feel as though this is a passthrough issue, but have tried everything I can think of from watching SpaceInvader's videos.

Thanks in advance.

syslog.txt