When we enable RemotePC-Wake On Lan for a machine catalog that is using an SCCM hosting connection. Local Host Cache stops synchronizing.
When it is in this state, any modification done to the power management via GUI does not take. But it does when done via PowerShell.
Turning off RemotePC-WOL solves these problems
This behavior does not happen when using other types of hosting connections.
The following gets logged in the application event log:
Log Name:      Application
Source:        Citrix ConfigSync Service
Date:          7/24/2019 3:24:14 PM
Event ID:      505
Task Category: (1)
Level:         Error
Keywords:      Classic
User:          N/A
The Citrix Config Sync Service failed an import. 
Error details: 
Attempted operation conflicts with current configuration

In the LHC error log we see:
Could not start Service Broker for database id: 6. A problem is preventing SQL Server from starting Service Broker. Check the SQL Server error…

Open on Citrix.com