Burndown chart is not getting updated as Sub tasks are updated with remaining efforts/estimates in hours. Ideally as soon as the sub tasks are updated with remaining estimates, it should reduce the estimate of the parent task as well as the Burndown chart should also be updated with this.
In Jira the burndown chart only gets updated when and only if the User Story/Task is marked resolved which is giving a wrong picture in reports.
please do suggest the solution for the same.