Comment 3 for bug 1780817

those image also related to xenial.
apt-cache policy linux-image-virtual-hwe-16.04
linux-image-virtual-hwe-16.04:
  Installed: 4.15.0.33.55
  Candidate: 4.15.0.33.55
  Version table:
 *** 4.15.0.33.55 500
        500 http://ua.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
        100 /var/lib/dpkg/status

Probably, it should be also marked to xenial ?