Worker role using event hubs gives 'No connection handler was found for virtual host'.

I have a worker role that uses an EventProcessorHost to ingest data from an EventHub. I frequently receive error messages of the following kind:

Microsoft.ServiceBus.Messaging.MessagingCommunicationException:
No connection handler was found for virtual host 'myservicebusnamespace.servicebus.windows.net:42777'. Remote container id is 'f37c72ee313c4d658588ad9855773e51'. TrackingId:1d200122575745cc89bb714ffd533b6d_B5_B5, SystemTracker:SharedConnectionListener, Timestamp:8/29/2016 6:13:45 AM
   at Microsoft.ServiceBus.Common.ExceptionDispatcher.Throw(Exception exception)
   at Microsoft.ServiceBus.Common.Parallel.TaskHelpers.EndAsyncResult(IAsyncResult asyncResult)
   at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.StepCallback(IAsyncResult result)

I can't seem to find a way to catch this exception. And I thought after some investigation I could just ignore it (because everything seemed to work fine). However I have now realized that individual messages seem to be ignored (at least not sent to my handler) when this error occurs.

Can anyone shed some light on the cause of this error?