When re-attaching all art/attachments to a new single bone, the order of attachments may change because the draw order is determined by the slot order in the hierarchy. To fix this, you can manually adjust the draw order in the Draw Order panel in Spine. This allows you to reorder the slots to achieve the desired visual stacking of attachments. Unfortunately, there isn't an automatic way to preserve the original order when re-parenting to a new bone, so manual adjustment is necessary.
