Sprite Shape corners not showing up when pivot set to bottom.

Playing around with Sprite Shapes for a while, everything works quite well until I changed the pivot of corner sprite to bottom center. The reason why I want to have it at the bottom center is that if I set it, then it's perfectly aligned with my custom "corners" I put manually. See attachments where scene.png shows not generated corners with bottom center pivot and notperfect.png shows the no-perfection when pivot is set to center center.