load_dotenv() on Azure Functions with Fastapi

I have a very weird issue and it only happens when I add the load_dotenv() line.

Environment:
Azure function locally with Fast API

References:

Create an Azure Function locally
https://learn.microsoft.com/en-us/azure/azure-functions/functions-develop-vs-code?tabs=nodejs#debugging-functions-locally
Setup FAST API with Azure Functions
https://github.com/Azure-Samples/fastapi-on-azure-functions/tree/main

Code:


[import logging
import azure.functions as func
import os
import openai
from FastAPIApp import app  # Main API application
from dotenv import load_dotenv

load_dotenv()

@app.get("/sample")
async def index():
    return {
        "info": "Try /hello/Shivani for parameterized route.",
    }


@app.get("/hello/{name}")
async def get_name(name: str):
    return {
        "name": name,
    }


async def main(req: func.HttpRequest, context: func.Context) -> func.](url)HttpResponse:
    return await func.AsgiMiddleware(app).handle_async(req, context)

Without load_dotenv() the code works perfect, any idea?