We have a number of instances where a task has a home list A and a second list B. When going to those list locations specifically, the task shows on the Gantt view at both A and B.

However, when that task has subtasks, the subtasks only appear on the Gantt chart at the location of list A. For a Gantt view that includes location A and location B, the subtasks still only display under location A.

When clicking on the subtasks, they only display location A on them, not A and B like the parent task.

The subtasks display correctly for list and board view, so is this a bug with Gantt view?