Bug filing cloudinit:
  /var/log/cloud-init.log
  /run/cloud-init/
  dmesg > dmesg.txt
  journalctl -o short-precise > journal.txt

Then, please run:
  sudo /usr/lib/ds-identify --force

And collect the (now updated) files:
  /run/cloud-init/cloud.cfg
  /run/cloud-init/ds-identify.log