.Net: Bug: Semantic Kernel Agent Orchestration Timeout

[shastitkoepm]

Describe the bug
I'm using Semantic Kernel Agent 1.67.1 preview library to build agentic flow.

To Reproduce
Steps to reproduce the behavior:

1. Library: Semantic Kernel Agent 1.67.1 preview

ChatCompletionAgent physicist = new ChatCompletionAgent
{
    Name = "PhysicsExpert",
    Instructions = "You are an expert in physics. You answer questions from a physics perspective.",
    Kernel = kernelGpt4o,
    LoggerFactory = loggerFactory
};

ChatCompletionAgent chemist = new ChatCompletionAgent
{
    Name = "ChemistryExpert",
    Instructions = "You are an expert in chemistry. You answer questions from a chemistry perspective.",
    Kernel = kernelGpt4o,
    LoggerFactory = loggerFactory
};
#pragma warning disable SKEXP0110

var physicistAiAgent = physicist.AsAIAgent();

ConcurrentOrchestration orchestration = new(physicist, chemist)
{
    LoggerFactory = loggerFactory
};

InProcessRuntime runtime = new InProcessRuntime()
{
};
await runtime.StartAsync();
//var result = await orchestration.InvokeAsync($"Translate the phrase to Spanish: {srcText}", runtime);
var result = await orchestration.InvokeAsync("What is temperature?", runtime);

// Wait for both agents to complete execution
string[] output = await result.GetValueAsync(TimeSpan.FromSeconds(240));

// Ensure runtime completes all pending work
await runtime.RunUntilIdleAsync();
#pragma warning restore SKEXP0110

info: Microsoft.SemanticKernel.Agents.Orchestration.Concurrent.ConcurrentOrchestration[0]
REGISTER ACTOR ConcurrentOrchestration RESULTS: ConcurrentOrchestration_f0070b06fc794968b68c2471d118560c_Results
info: Microsoft.SemanticKernel.Agents.Orchestration.Concurrent.ConcurrentOrchestration[0]
REGISTER ACTOR ConcurrentOrchestration MEMBER https://github.com/microsoft/semantic-kernel/pull/1: ConcurrentOrchestration_f0070b06fc794968b68c2471d118560c_Agent_1
info: Microsoft.SemanticKernel.Agents.Orchestration.Concurrent.ConcurrentOrchestration[0]
REGISTER ACTOR ConcurrentOrchestration MEMBER https://github.com/microsoft/semantic-kernel/pull/2: ConcurrentOrchestration_f0070b06fc794968b68c2471d118560c_Agent_2
info: Microsoft.SemanticKernel.Agents.Orchestration.Concurrent.ConcurrentOrchestration[0]
INVOKE ConcurrentOrchestration: ConcurrentOrchestration_f0070b06fc794968b68c2471d118560c/default
info: Microsoft.SemanticKernel.Agents.Orchestration.AgentOrchestration.RequestActor[0]
INIT ConcurrentOrchestration: ConcurrentOrchestration_f0070b06fc794968b68c2471d118560c_Boot/default
info: Microsoft.SemanticKernel.Agents.Orchestration.AgentOrchestration.RequestActor[0]
START ConcurrentOrchestration: ConcurrentOrchestration_f0070b06fc794968b68c2471d118560c_Boot/default
fail: Microsoft.SemanticKernel.Agents.Orchestration.Concurrent.ConcurrentOrchestration[0]
TIMEOUT ConcurrentOrchestration: ConcurrentOrchestration_f0070b06fc794968b68c2471d118560c/default

Platform

• Language: C#
• Source: NuGet package version 1.67.1 preview
  AI model: AzureOpenAI:GPT-4.1
  IDE: Visual Studio
  OS: Windows