I am new to the azure, and as a junior, I am currently working on a migrate function app version from v3 to v4. And currently the issue I am facing is After I update the package and related code from local and tested which is all good locally then I push to the github and using CI/CD to upload one of the environment(you could call test1) to using apim to run a test. However is always return 404 not found. I been checking all the backend endpoint and apim URL looks all set correct, function app itself didn’t have any failed request as well after I checked function app application insight. Only in APIM application insight is shows 404. Is it mean the APIM is even not reach to function app itself? for an another environment(you could call test2) on the APIM which is actually the old copy of version 3 and is return 200 and these 2 environment are sharing almost same variable, only the environment name and few keys are different, and they are different version. I really can’t find any valuable info from the log or application insight as is only shows 404. And in locally all the api is return the correct code. The only concern I can see is when I looking to the function app configuration tab-general setting, is shows .net version 6 isolated, however I am using in-process. But I am unable to change to in-process somehow, is just not allow me even i select in-process is still shows isolated. And I also checked FUNCTIONS_WORKER_RUNTIME is also set dotnet which should be the correct value. Could this led the error or could be something else?