Function Stops Processing Queue Messages

We are using Azure Functions to process some imports for this we use some Queue we have some queue triggered functions.
The issue we are facing is that after functioning properly for some time the Azure Function stops processing messages from Queue (even though they exist in the queue).
To again restart the processing we have to nudge the corresponding function app by opening the code etc..

Start by reproducing the queue-triggered Azure Function behavior described: messages remain in the queue after processing stops, and opening the function app resumes processing. Inspect the Azure Functions host/runtime handling of queue-triggered functions and compare behavior before and after the function app is nudged. Done means queue messages continue processing without manual intervention.

Written by the indexing model from the issue text.