UnknownHostException in async service task caused an incident

I have an async service task with 100 retry. In service task I call an rest service. In network error when calling the service throws an UnknownHostException engine don’t retry the task and mark this task as an incident. In this situation I would like to retry this task automatically. Is there anything wrong here?

unknownhostexception.bpmn (6.2 KB)

can you upload your model?

I add the bpmn file. The main file is so big so I removed the irrelevant tasks. Thanks