Local Azure Function: Customer packages not in sys path. This should never happen

I'm encountering a weird warning with azure functions locally. Whenever I func start my function, I get these error messages:

Found Python version 3.10.12 (python3).

Azure Functions Core Tools
Core Tools Version:       4.0.5455 Commit hash: N/A  (64-bit)
Function Runtime Version: 4.27.5.21554

[2023-11-14T10:02:39.795Z] Customer packages not in sys path. This should never happen!
[2023-11-14T10:02:42.194Z] Worker process started and initialized.

In the host.json, extensionBundle version is [3.*, 4.0.0) In the local.settings.json, "FUNCTIONS_WORKER_RUNTIME": "python" The function app is based on the new model of python azure function (func init MyProjFolder --worker-runtime python --model V2 https://learn.microsoft.com/en-us/azure/azure-functions/functions-run-local?tabs=linux%2Cisolated-process%2Cnode-v4%2Cpython-v2%2Chttp-trigger%2Ccontainer-apps&pivots=programming-language-python)

My first interrogation is the first warning:

Customer packages not in sys path. This should never happen!. I'm using a virtual environment.

The function is starting correctly, but what is this warning?

local.settings.json:

{
    "IsEncrypted": false,
    "Values": {
      "FUNCTIONS_WORKER_RUNTIME": "python",
      "AzureWebJobsStorage": "UseDevelopmentStorage=true",
      "AzureWebJobsFeatureFlags": "EnableWorkerIndexing"
    }
  }

This seems to be the issue with the latest version of Azure function Core tools (4.0.5455), which is published recently (6 days ago) as mentioned in the official doc.

I have created a python Azure function to check the same:

Python Version: 3.11.5

Azure Functions Core Tools
Core Tools Version:       4.0.5348 Commit hash: N/A  (64-bit)
Function Runtime Version: 4.24.5.21262

• Didn't get any such warning:

• Updated the Azure function Core tools version to 4.0.5455.

• Running the same Azure Function again with below versions:

Python version 3.11.6 (py).

Azure Functions Core Tools
Core Tools Version:       4.0.5455 Commit hash: N/A  (64-bit)
Function Runtime Version: 4.27.5.21554