How to check detail loags when functions are missing after deploy?

I'm currently developing a new service, and while I can manually deploy Azure Functions with FastAPI imported on a Windows OS, deploying through GitHub CI/CD proceeds without errors but results in no functions being created.

Below is the source code and environment:

Python: 3.11

Azure Functions Run Time Version: 4.1036.2.2

Location: Korea Central

from
import
import
app = func.FunctionApp(http_auth_level=func.AuthLevel.ANONYMOUS) 

@app.route(route="http_trigger"
	

After adding fastapi to the requirements.txt and importing it in function_app.py, deploying via GitHub Actions does not create any functions.

I understand that missing functions can be caused by issues like library version conflicts or environment variable misconfigurations.

However, where can I find the exact cause of this issue? The Application Insights - Transaction Search only shows "0 Functions Loaded" without providing further details.

This is domain for my functions: https://mygpt-test-function.azurewebsites.net