After upgrade 6.12.6 from 6.11.5 some VM tab elements are not working; primary GPU passthrough not working anymore

Have you tried removing the docker folder plugin that is not compatible with this release of Unraid?

Thank you, now the buttons are working.
Sorry, I have overseen that. 🤦‍♂️

 

Now, I have still the issue with the passthrough  (Code 45) that was working at 6.11.5

 

I've created a new VM, using the old vdisk. Added the same xml for graphic and sound.
 

    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
      </source>
      <alias name='hostdev0'/>
      <rom file='/mnt/SSD/Vms/Bios/Asus.GT710.2048.170525.rom'/>
      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0' multifunction='on'/>
    </hostdev>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x05' slot='0x00' function='0x1'/>
      </source>
      <alias name='hostdev1'/>
      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x1'/>
    </hostdev>

 

And its working. 🤷‍♂️
The old VM with the same config is not.

2 hours ago, BasWeg said:

And its working. 🤷‍♂️
The old VM with the same config is not.

All I can suggest is compare the xml for the old and new VMs to see what is different.