Release Date: 29th March 2018
Starting a job from Orchestrator failed on Robot machines which had the LoginToConsole parameter set to false in the UiPath.Setting file, and one of the following operating system updates installed:
KB4088876 - for Windows 8.1 or Windows Server 2012 R2 Standard
KB4088875 - Windows Server 2008 R2 SP1, Windows 7 SP1
KB4088787 - Windows Server 2016, Windows 10 Version 1607
KB4088776 - Windows 10 version 1709
For a full list of affected operating systems, please see this article.