Solution:
Update to a fix version listed below or a newer version if available.
Fix version:
Component(s): Automation.Engine
Automation.Engine v12.0.7 - Available
Automation.Engine v12.1.4 - Available
Automation.Engine v12.2.1 - Available
Automation.Engine v12.3.0 - Planned Release 2019-02-28
Automation.Engine v12.1.3HF1 - Available