Hello the configuration of the PCI.pm has changed in PVE 5.3. >>> /usr/share/perl5/PVE/QemuServer/PCI.pm
PCI.pm >> PVE 5.3
my $devices = {
vga => { bus => 'pcie.0', addr => 1 },
hostpci0 => { bus => "ich9-pcie-port-1", addr => 0 },
hostpci1 => { bus =>...