Sending requests on invalid route on nextjs app is returning 404 not found but in application insights, some internal localhost request returns 200OK

Question

We have come across an unusual problem where sending a request to an invalid route results in a 404 not found status code, which is the expected behavior. However, when we checked the application insight logs, it showed a 200 OK response on internal calls.

I have attached a screenshot for reference, and I would appreciate it if someone could explain why this is happening.