Redis Cache error on Azure WebApp (Sitefinity 9.2.6200.0)

We've deployed a newly upgraded website using Sitefinity 9.2.6200.0.

Every time the project is deployed from Visual Studio 2012 via a publish operation, when the website initializes, the following error is encountered:

HandlingInstanceID: 87882162-403a-4b7b-b76d-561418aa47c6

 An exception of type 'System.NullReferenceException' occurred and was caught.
 -----------------------------------------------------------------------------
 10/13/2016 16:13:26
 Type : System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
 Message : Object reference not set to an instance of an object.
 Source : Telerik.Sitefinity
 Help link : 
 Data : System.Collections.ListDictionaryInternal
 TargetSite : Void SendSystemMessages(Telerik.Sitefinity.LoadBalancing.SystemMessageBase[])
 HResult : -2147467261
 Stack Trace : at Telerik.Sitefinity.LoadBalancing.RedisSystemMessageSender.SendSystemMessages(SystemMessageBase[] msgs)
 at Telerik.Sitefinity.LoadBalancing.SystemMessageDispatcher.SendSystemMessage(SystemMessageBase msg)
 
 Additional Info:
 
 MachineName : RD0003FF789739
 TimeStamp : 10/13/2016 4:13:26 PM
 FullName : Telerik.Sitefinity.Utilities, Version=9.2.6200.0, Culture=neutral, PublicKeyToken=b28c218413bdf563
 AppDomainName : /LM/W3SVC/1904430421/ROOT-1-131208486233217865
 ThreadIdentity : 
 WindowsIdentity : IIS APPPOOL\vulcanmaterials-us-e__ac7b
 Requested URL : http://127.0.0.1/

What's interesting about this is that we indeed have the redis cache configuration properly configured in the system settings as per these instructions: docs.sitefinity.com/configure-azure-redis-cache.

Also, this error only happens when the website initializes for the first time. It doesn't appear to happen as we browse the website thereafter.

Any ideas?

I received an update from support and wanted to share here:

"This is currently a known issue in Sitefinity and you can refer to the attached KB article for more information. If you are indeed only observing these error while the project is starting then there is no reason to be worried."

KB article: knowledgebase.progress.com/.../401-warning-messages-during-initialization-when-load-balance-is-used

The kb link is not working, I think this is an update dox. 

knowledgebase.progress.com/.../warning-messages-during-initialization-when-load-balancing-is-used

I am getting this error regularly.