Thanks for your answer.
Yesterday we removed all content from /rhev/data-center/mnt/blockSD/* on our nodes (in
Local Maintenance mode) and manually updated the nodes with "dnf update". After
a reboot and a night's sleep, all 12 nodes are reporting up to date status.
That is, we are now on 4.4.2. Looking forward to see the error corrected in a future
release.