IsAllDataRequested false when deploy not localhost

[psavoldelli]

Hello,

I have a strange issue with httpclient instrumentation.
Small app overview where I try distributed tracing.

sequenceDiagram
    App 1 ->>App 2: Http call with refit
    App 2-)External app: Other http call with refit
    External app-)App 2:  
    App 2-)App 1:  

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App 1 and App 2 are .NET6 Web api with aspnetcore instrumentation and http client instrumentation.

In localhost have not any issues.
When I deploy this stack on K8S, all the http outbound call made by App 1 or App 2 are not exported.
After dinging a little, it appears that this code line always set IsAllDataRequested to false.

as a workaround, I created a new DelegatingHandler like this;

protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
   // Clean up http client request. 
   request.Headers.Remove("traceparent");
   request.Headers.Remove("tracestate");
   
   return base.SendAsync(request, cancellationToken);
}

Then, my outbound child span is well created, and my http call headers are correctly set with traceparent and tracestate.
I don't understand why. Is this something we've seen before?