Gantt chart view works similar to the old Table view. The Gantt chart view remains unchanged with the introduction to Wrike Lightspeed, meaning project sorting by priority is still not available. Projects and folders are sorted alphanumerically when sorting by priority and the priority sorting applies only to tasks.
It just makes sense that this new functionality should be brought to lightspeed so that Gantt charts and Table views behave the same way. Can you do this?