Hyper-V 2012 Replica out of sync.

Microsoft.Windows.HyperV.2012.VMReplicationHealth33414.Monitor (UnitMonitor)

Monitors Virtual Machines Replication frequency.

Knowledge Base article:

Summary

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

Causes

This error could be caused due to either:

Resolutions

Element properties:

TargetMicrosoft.Windows.HyperV.2012.VirtualMachine
Parent MonitorSystem.Health.AvailabilityState
CategoryStateCollection
EnabledTrue
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeMicrosoft.Windows.HyperV.2012.VMReplicationHealthMonitorType
RemotableTrue
AccessibilityPublic
Alert Message
Last replication was before 1 hour.
Virtual Machine replication lag by more than an hour.
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.Windows.HyperV.2012.VMReplicationHealth33414.Monitor" Accessibility="Public" Enabled="onEssentialMonitoring" Target="HVDisc!Microsoft.Windows.HyperV.2012.VirtualMachine" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="Microsoft.Windows.HyperV.2012.VMReplicationHealthMonitorType" ConfirmDelivery="false">
<Category>StateCollection</Category>
<AlertSettings AlertMessage="Microsoft.Windows.HyperV.2012.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>