Accessories don't attach to character Attachments if other Attachments exist

[MrHistory]

I have this model in Workspace

I want to attach it to the back of my character. That’s why I included an Attachment called BodyBackAttachment (Oops!). I add it to my character by calling Humanoid.AddAccessory. The Accessory functions like a Hat instead of attaching to the back of my character:

Now when I remove the two other Attachments inside Handle and re-add it, it works perfectly:

[Brick_man]

What would happen if you named those two attachments “BodyBackAttachment”? (more of a workaround but it might work?)