Hi David
In the screenshot given the time when no tasks are run is between 6PM-9AM could there be the possibility the user has turned off, logged out or locked their Windows computer at the end of the day and disabling the agent?
You could look at using a Dedicated mode and have the agent run as a Windows Service, this can be more reliable then Workstation mode, https://dev.epicgames.com/documentation/en\-us/unreal\-engine/horde\-agent\-deployment\-for\-unreal\-engine\#runningasaservice
When running as a service each workstation will need to have a Token value set in the Agent Settings to authenticate with Horde https://dev.epicgames.com/documentation/en\-us/unreal\-engine/horde\-agent\-deployment\-for\-unreal\-engine\#registration
Matthew