Stuck at 95% solved after manual update of KB4467691
Thanks for your help Karl W-E, but yes, servers have last SSU installed, 4465659.
We have 3 identical VMs with Windows 2016 (installed from same template)... Everyone have had a different update process, last one is stuck in 95% downloading. No clear log of anything, I can believe this happens in 2018, what a shame!!!