Encrypting boot partition Libvirt not showing the OS booting up

Hi, I have installed Debian Buster with encrypted LVM so apon installation my root partition is encrypted. So far so good but as soon as I encrypt the boot partition, after reboot the OS won't start. If I start the drive directly with qemu, it works but it looks like Libvirt is somehow not able to deel with it. What am I missing? -- John Doe