An instance of EventSource with Guid 74af9f20-af6a-5582-9382-f21f674fb271 already exists

Question

This trace message is popping up all over our AppInsights instance. I don't know what is means, or what could be the cause. I'm happy to provide any details that can help debug.

Trace message

AI (Internal): ERROR: Exception in Command Processing for EventSource Microsoft-ApplicationInsights-Core: An instance of EventSource with Guid 74af9f20-af6a-5582-9382-f21f674fb271 already exists.

sdkVersion : dotnet:2.7.2-23439

Code Sample :

        [FunctionName("UpdateFunction")]
    public async static Task Run(
        [EventHubTrigger("Product-events", Connection = "EventHubConnectionString", ConsumerGroup = "%ConsumerGroupName%")]Message[] objMessage,
        [Blob("%ProductBlobContainerName%", System.IO.FileAccess.Read, Connection = "BlobStorageConnectionString")] CloudBlobContainer productblobContainer,
        [CosmosDB(databaseName: "DatabaseName", collectionName: "procudtCollectionName", ConnectionStringSetting = "DBConnectionString")]DocumentClient client,
        ExecutionContext context, ILogger log)
    {
        TelemetryClient telemetry = TelemetryCreation.Instantiate(context);
        ConcurrentBag<int> DocumentToInsert= new ConcurrentBag<int>();
        ConcurrentBag<Message> DocumentToBeDeleted = new ConcurrentBag<Message>();
        try
        {
            telemetry.TrackTrace($"{context.FunctionName} Started", SeverityLevel.Information, new Dictionary<string, string>
            {
                {
                    "PrefixName",
                    objMessage[0].ToString()
                },
                {
                    "NumberOfMsgs",
                    objMessage.Length.ToString()
                }
            });

            await UpsertProvider(objMessage, productblobContainer, client, telemetry, DocumentToInsert, DocumentToBeDeleted);
            if (DocumentToBeDeleted.Count > 0)
            {
                DeleteProviders.DeleteProvider(DocumentToBeDeleted.ToArray(), client, context, telemetry);
            }

            telemetry.TrackTrace($"{context.FunctionName} Completed", SeverityLevel.Information);
        }
        catch (Exception ex)
        {
            telemetry.TrackException(ex, new Dictionary<string, string> {
                { "Azure Background Function Name",context.FunctionName },
                { "Read Data from container > folder",  productblobContainer.ToString() + ">" + objMessage[0].PrefixName.ToString()},
                { "Total Documents received", objMessage.Length.ToString() },
                { "Number of documents to insert", DocumentToInsert.Count.ToString() },
                 { "List of Documents to be updated", JsonConvert.SerializeObject(DocumentToInsert).ToString() },
                { "Number of documents skipped (Location is null)", DocumentToBeDeleted.Count.ToString() },
                { "List of Documents skipped", JsonConvert.SerializeObject(DocumentToBeDeleted).ToString() },
                { "Exception Message",ex.Message },
                { "Exception InnerMessage",ex.InnerException.ToString() }
                });

            throw;
        }
    }