Open world model doesn't match hero panel - Problem with Draconic Chest Piece? - Visual sizing bug

As you can see my character looks much skinnier in the open world but in the hero panel she looks thicker. I measured the pixels between both models. The waist of the open world model was approximately 50-52 pixels wide. However the hero panel one was about 70 pixels wide. I'm not sure if this is just an issue with the Draconic Chest Piece or everything. But you can clearly see her waist is much thinner in the open world variant. Her legs even look skinnier too.