Users are creating jobs in the Gantt view and when create the job always stays has a son of the selected.
Prevent Future Issues
Go to the user form and:
- Add the role "ProjectSave" and "DeliverableSave"
- Go to Gantt and select a task.
- Add new task and check that the new task is created as a sibling of the document that it's currently selected.
- Leave and reenter view - changes must be persisted.