I set my releases Gantt view to sort by release date. If I add a new release, it appears at the bottom regardless of the sort order it should be in. If I manually refresh the screen, it remains at the bottom. To have it sort properly, I have to go into the sorting control and reset the sort.
I'd suggest an auto-refresh and sort upon addition of a new release. Alternatively, if auto-refresh is not an option, a screen refresh would apply the preselected sort selections.