using System.Diagnostics.Tracing;

public static class Program
{
    public static void Main(string[] args)
    {
        new Listener();

        // Precondition: web app - does not reproduce in console app (perhaps just due to fewer events happening?).
        var builder = WebApplication.CreateBuilder(args);

        var app = builder.Build();

        app.Run();
    }
}

public class Listener : EventListener
{
    private const string EventSourceName = "Microsoft-Windows-DotNETRuntime";

    const int KeywordGC = 1;
    const int KeywordThreading = 65536;

    // Precondition: both of these keywords.
    private const EventKeywords Keywords = (EventKeywords)(KeywordGC | KeywordThreading);

    protected override void OnEventSourceCreated(EventSource es)
    {
        if (es.Name == EventSourceName)
        {
            EnableEvents(es, EventLevel.Verbose, Keywords);
        }
    }
}

System.NullReferenceException
  HResult=0x80004003
  Message=Object reference not set to an instance of an object.
  Source=System.Private.CoreLib
  StackTrace:
   at System.Diagnostics.Tracing.EventPipePayloadDecoder.DecodePayload(EventMetadata& metadata, ReadOnlySpan`1 payload)

  This exception was originally thrown at this call stack:
    System.Diagnostics.Tracing.EventPipePayloadDecoder.DecodePayload(ref System.Diagnostics.Tracing.EventSource.EventMetadata, System.ReadOnlySpan<byte>)

>	System.Private.CoreLib.dll!System.Diagnostics.Tracing.EventPipePayloadDecoder.DecodePayload(ref System.Diagnostics.Tracing.EventSource.EventMetadata metadata, System.ReadOnlySpan<byte> payload) Line 19	C#
 	System.Private.CoreLib.dll!System.Diagnostics.Tracing.NativeRuntimeEventSource.ProcessEvent(uint eventID, uint osThreadID, System.DateTime timeStamp, System.Guid activityId, System.Guid childActivityId, System.ReadOnlySpan<byte> payload) Line 55	C#
 	System.Private.CoreLib.dll!System.Diagnostics.Tracing.EventPipeEventDispatcher.DispatchEventsToEventListeners() Line 175	C#
 	System.Private.CoreLib.dll!System.Threading.Tasks.Task.InnerInvoke() Line 2397	C#
 	System.Private.CoreLib.dll!System.Threading.Tasks.Task..cctor.AnonymousMethod__272_0(object obj) Line 2376	C#
 	System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Line 183	C#
 	System.Private.CoreLib.dll!System.Threading.Tasks.Task.ExecuteWithThreadLocal(ref System.Threading.Tasks.Task currentTaskSlot, System.Threading.Thread threadPoolThread) Line 2333	C#
 	System.Private.CoreLib.dll!System.Threading.Tasks.Task.ExecuteEntryUnsafe(System.Threading.Thread threadPoolThread) Line 2277	C#
 	System.Private.CoreLib.dll!System.Threading.Tasks.ThreadPoolTaskScheduler..cctor.AnonymousMethod__10_0(object s) Line 36	C#
 	System.Private.CoreLib.dll!System.Threading.Thread.StartCallback() Line 105	C#