Hi,
after change vCPU on W2019 VM, this won't boot due to XML error: Multiple 'scsi' controllers with index '0' bug reported in 4.2.x (https://bugzilla.redhat.com/show_bug.cgi?id=1543833)
After detach disk and reattach in virtio-scsi the disk disappears.
I've reattached disk to another VM, thath boot, but after change vCPU or anything the problem is same.