.Net: Bug: Google Gemini unable to perform Multiple Function calls in single request

[MustafaJamal]

Problem

I am using IChatCompletionService with Google Gemini, but in any request where multiple function calls are going to be performed assistant is not able to do it and ends the stream without any exception. Here are my code snippets:

promptExecutionSettings = new GeminiPromptExecutionSettings()
{
    ToolCallBehavior = GeminiToolCallBehavior.AutoInvokeKernelFunctions,
    Temperature = (reasoningEffort == null || reasoningEffort == string.Empty)
        ? (float?)temperature
        : null,
    ModelId = modelId,
    ResponseMimeType = (convertToJSON == null || convertToJSON == false)
        ? null
        : "application/json",
    ThinkingConfig = new GeminiThinkingConfig()
    {
        ThinkingBudget = -1
    }
};

It works fine if there is one function call to be performed

Platform

• Language: C# ASP.NET Core 8
• Source:
  Microsoft.SemanticKernel 1.57.0
  Microsoft.SemanticKernel.Connectors.Google 1.57.0-alpha
  Microsoft.Extensions.AI 9.6.0
• AI model: Google Gemini: gemini-2.5-pro