@sukalpo it looks like the flowable:failedJobRetryTimeCycle property is not exposed in the web modeler.
For the retry. How are you tracking the retry count? Is it that with the GetClaimablePoliciesTask or do you have some other way to track it?
If you are doing it like with your example code then the retry count should work as it is a static variable. However, that would only work once after a startup of the server (due to the static)