Hyper-V 2016 and 1709+ Replica out of sync monitor

Microsoft.Windows.HyperV.VMReplicationHealth33414.Monitor (UnitMonitor)

Monitors Virtual Machines Replication frequency.
Note: This monitor is disabled by default. Please use overrides to enable it when necessary.

Knowledge Base article:

Summary

The primary virtual machine and replica virtual machine are out of sync for more than an hour. In the event of an unplanned failover, you would stand to lose more than 1 hour worth of data.

Note: This monitor is disabled by default. Please use overrides to enable it when necessary.

Causes

This error could be caused due to either:

Resolutions

Element properties:

TargetMicrosoft.Windows.HyperV.Discovery.VirtualMachine
Parent MonitorSystem.Health.AvailabilityState
CategoryStateCollection
EnabledFalse
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeMicrosoft.Windows.HyperV.VMReplicationHealthMonitorType
RemotableTrue
AccessibilityPublic
Alert Message
Last replication was before 1 hour.
Virtual Machine replication lag for more than an hour.
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.Windows.HyperV.VMReplicationHealth33414.Monitor" Accessibility="Public" Enabled="false" Target="HVDisc!Microsoft.Windows.HyperV.Discovery.VirtualMachine" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="Microsoft.Windows.HyperV.VMReplicationHealthMonitorType" ConfirmDelivery="false">
<Category>StateCollection</Category>
<AlertSettings AlertMessage="Microsoft.Windows.HyperV.VMReplicationHealth33414.Alert">
<AlertOnState>Error</AlertOnState>
<AutoResolve>true</AutoResolve>
<AlertPriority>Normal</AlertPriority>
<AlertSeverity>Error</AlertSeverity>
<AlertParameters/>
</AlertSettings>
<OperationalStates>
<OperationalState ID="Healthy" MonitorTypeStateID="VMReplicationHealthy" HealthState="Success"/>
<OperationalState ID="Unhealthy" MonitorTypeStateID="VMReplicationCritical" HealthState="Error"/>
</OperationalStates>
<Configuration>
<IntervalSeconds>1800</IntervalSeconds>
<TimeoutSeconds>30</TimeoutSeconds>
<VMId>$Target/Property[Type="HVLib!Microsoft.Windows.HyperV.VirtualMachine"]/VirtualMachineId$</VMId>
<ErrorProperty>ReplicationHealthIssuesList</ErrorProperty>
<ErrorCode>33414</ErrorCode>
</Configuration>
</UnitMonitor>