I designed a custom Task Form in "Assign Flexi Task". On running the workflow the assignee gets mail to complete his task. The form is displayed to the assignee. Assignee selects his "Choice" and clicks on "Save & Submit" button. But workflow does not move to next action, also it does not show any error. It is difficult to find out at which field/control the workflow has stuck up. Then I terminate the workflow which shows incomplete action at "Assign Flexi Task". Will you please help to find out the issue. Also please tell what is the way to identify such issues.
One thing I have to make clear that instead of Custom Task form if I use default Task form the workflow runs smoothly and completes.