Application Map connection for Azure Functions with CosmosDBTrigger is missing

I created a set of Azure Functions.

The first function is triggered via HTTP and creates a document in a Cosmos DB by using a CosmosDB output binding.

The second function is triggered by a CosmosDB input trigger and creates a file in Azure Blob storage.

All functions use Application Insight. All functions and connections are shown in the Application map except the connection between function 1 and function 2 (Cosmos DB output binding and Cosmos DB input trigger)