An Azure service that provides an event-driven serverless compute platform.
Hi Mithran Joe:
Glad to know that you were able to figure this out and thanks for sharing the root cause. By the way, the Microsoft Q&A community has a policy that "The question author cannot accept their own answer, they can only accept answers by others". Hence request you to accept this as an answer so we can close this thread. I am summarizing the issue and the root cause you have found for it.
Issue Fix:
Disabling & re-enabling the application insights solved the issue for the user.