Copying Armature Not Working

I have learned how to construct a simple character sprite using the Bone tool. Im able to make this character move any way I want and it seems to work fine. However, I wanted to have a scene where the character was talking to himslef, and when I duplicate the sprite along with the IK Armature, it seems to break. The symbols and the armature are still there, but they are disconnected. The symbols are able to move freely and arent restrained to the skeleton I made for it. It even sometimes stretches them everywhere. I am also not able to edit any poses later on in the animation with this duplicated character.

Is there a way to duplicate a character with IK Armature and have all the parts stay in tact?

(Also, the shoulder piece of the rig seems to be stuck in place, even though I never locked it.)