Service Bus Subscription registration problem during instance startup

Description

Exception when trying to start message pump in Service Bus. The error indicates that the just created subscription is not available. Operation should be retried.

2019-10-23T09:07:49,Error,xxx,4741f2,637074184691094985,0,76,27,"EPiServer.Azure.Events.AzureEventProvider : Failed to initialize ServiceBus connection, no remote events will be sent or received until issue is solved and application is restarted
System.AggregateException: One or more errors occurred. ---> Microsoft.ServiceBus.Messaging.MessagingEntityNotFoundException: 40400: Endpoint not found., Resource:sb://xx.servicebus.windows.net/mysitevents/subscriptions/xx. TrackingId:6db53c41-1745-4e18-8fff-e66c4d599072_G42, xx.servicebus.windows.net:mysitevents/Subscriptions/xx, Timestamp:2019-10-23T09:07:48 ---> System.ServiceModel.FaultException: 40400: Endpoint not found., Resource:sb://xxx.servicebus.windows.net/mysitevents/subscriptions/xx. TrackingId:6db53c41-1745-4e18-8fff-e66c4d599072_G42, xxx.servicebus.windows.net:mysitevents/Subscriptions/xx, Timestamp:2019-10-23T09:07:48
   at Microsoft.ServiceBus.Messaging.Sbmp.DuplexRequestBindingElement.DuplexRequestSessionChannel.ThrowIfFaultMessage(Message wcfMessage)
   at Microsoft.ServiceBus.Messaging.Sbmp.DuplexRequestBindingElement.DuplexRequestSessionChannel.HandleMessageReceived(IAsyncResult result)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.ServiceBus.Common.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at Microsoft.ServiceBus.Messaging.Sbmp.DuplexRequestBindingElement.DuplexRequestSessionChannel.EndRequest(IAsyncResult result)
   at Microsoft.ServiceBus.Messaging.Channels.ReconnectBindingElement.ReconnectChannelFactory`1.RequestSessionChannel.RequestAsyncResult.<>c.<GetAsyncSteps>b__9_3(RequestAsyncResult thisPtr, IAsyncResult r)
   at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.StepCallback(IAsyncResult result)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.ServiceBus.Common.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at Microsoft.ServiceBus.Messaging.Channels.ReconnectBindingElement.ReconnectChannelFactory`1.RequestSessionChannel.EndRequest(IAsyncResult result)
   at Microsoft.ServiceBus.Messaging.Sbmp.RedirectBindingElement.RedirectContainerChannelFactory`1.RedirectContainerSessionChannel.RequestAsyncResult.<>c__DisplayClass8_1.<GetAsyncSteps>b__4(RequestAsyncResult thisPtr, IAsyncResult r)
   at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.StepCallback(IAsyncResult result)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.ServiceBus.Common.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at Microsoft.ServiceBus.Messaging.Sbmp.RedirectBindingElement.RedirectContainerChannelFactory`1.RedirectContainerSessionChannel.EndRequest(IAsyncResult result)
   at Microsoft.ServiceBus.Messaging.Channels.ReconnectBindingElement.ReconnectChannelFactory`1.RequestSessionChannel.RequestAsyncResult.<>c.<GetAsyncSteps>b__9_3(RequestAsyncResult thisPtr, IAsyncResult r)
   at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.StepCallback(IAsyncResult result)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.ServiceBus.Common.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at Microsoft.ServiceBus.Messaging.Channels.ReconnectBindingElement.ReconnectChannelFactory`1.RequestSessionChannel.EndRequest(IAsyncResult result)
   at Microsoft.ServiceBus.Messaging.Sbmp.SbmpMessageReceiver.EndReceiveCommand(IAsyncResult result, IEnumerable`1& messages)
   --- End of inner exception stack trace ---
   at Microsoft.ServiceBus.Common.ExceptionExtensions.ThrowException(Exception exception)
   at Microsoft.ServiceBus.Common.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at Microsoft.ServiceBus.Messaging.MessageReceiver.OnMessage(MessageReceivePump pump)
   at Microsoft.ServiceBus.Messaging.SubscriptionClient.OnMessage(Action`1 callback, OnMessageOptions onMessageOptions)
   at EPiServer.Azure.Events.AzureEventProvider.InitializeServiceBusConnection()
   at System.Threading.Tasks.Task.Execute()
   --- End of inner exception stack trace ---
---> (Inner Exception #0) 40400: Endpoint not found., Resource:sb://xx.servicebus.windows.net/mysitevents/subscriptions/xx. TrackingId:6db53c41-1745-4e18-8fff-e66c4d599072_G42, SystemTracker:xxx.servicebus.windows.net:mysitevents/Subscriptions/xx, Timestamp:2019-10-23T09:07:48<---