After upgrading previous versions of StoreFront to version 3.0.0.44 the following issues can be seen.

Event Viewer > Applications and Services Logs > Citrix Delivery Services log:
Level: Error, Source: Citrix Credential Wallet Service, Event ID: 1, Task Category (2302)
Error Text: Failed to create the Credential Wallet replication channel
System.ArgumentException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Credentials specified are not sufficient to carry requested operation. Please specify a valid value for Credentials.Peer.Certificate.
   at System.ServiceModel.Channels.PeerSecurityManager.ValidateCredentialSettings(PeerAuthenticationMode authenticationMode, Boolean signMessages, PeerCredential credential)
   at System.ServiceModel.Channels.PeerSecurityManager.Create(PeerAuthenticationMode authenticationMode, Boolean signMessages, BindingContext context, XmlDictionaryReaderQuotas readerQuotas)
   at System.ServiceModel.Channels.PeerChannelFactory`1..ctor(PeerTransportBindingElement bindingElement, BindingContext context, PeerResolver peerResolver)
   at System.ServiceModel.Channels.PeerTransportBindingElement.BuildChannelFactory[TChannel](BindingContext context)
   at System.ServiceModel.Channels.Binding.BuildChannelFactory[TChannel](BindingParameterCollection parameters)
   at System.ServiceModel.Channels.ServiceChannelFactory.BuildChannelFactory(ServiceEndpoint serviceEndpoint, Boolean useActiveAutoClose)
   at System.ServiceModel.ChannelFactory.CreateFactory()
   at System.ServiceModel.ChannelFactory.OnOpening()
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.ChannelFactory.EnsureOpened()
   at System.ServiceModel.DuplexChannelFactory`1.CreateChannel(InstanceContext callbackInstance, EndpointAddress address, Uri via)
   at Citrix.DeliveryServices.CredentialWallet.InMemory.Replication.MeshReplicationFactory.Create(IReplicationNode replicationNode)

Level: Warning, Source: Citrix Credential Wallet Service, Event ID: 9, Task Category (2302)
Error Text: The replication channel failed to open. Synchronisation is disabled.
NOTE: In certain access scenarios, for example, where a StoreFront Server Group is accessed by a native client without “sticky” load-balancing, intermittent enumeration and launching of XenApp and XenDesktop resources may fail.

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IMPORTANT: Only StoreFront versions upgraded to 3.0.0.44 are impacted by this issue.
As this is a configuration only issue, it can be remediated by running the attached PowerShell script.
PS> .\FixupCredentialWallet.ps1
For a StoreFront Server Group deployment, run the above script on the primary server, and then use the StoreFront Administration Console to propagate the change to the other servers in the Server Group.

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Problem Cause

During the upgrade process the Credential Wallet Service configuration file is incorrectly modified.

Detailed Explanation

The Credential Wallet Service uses a peer network to ensure that encrypted credentials are available on all the servers of a StoreFront Server Group. This mechanism uses certificate mutual authentication to secure the communication channels.
The upgrade process has defined the client certificate, but not the server certificate leading to the mutual authentication failing.
This is a configuration failure.

Diagnostics

The signature of this issue is the events, described above, appearing in the Event Log approximately every five minutes.

Issues after upgrading StoreFront to Version 3.0.0.44 - (Credential Wallet issue)