It appears in the summary but disappears after you resave the field display settings.

Comments

Project:Display Suite» Field Group
Version:7.x-2.0» 7.x-1.x-dev
Component:Field UI» Code

Display Suite doesn't handle the cloning of field groups, that's field group module itself.

Ah ok sorry, my bad!

It's a pretty harmless issue but I figured it was worth reporting anyway...