When looking at the modding GUI for the Heartbreaker Gear Set's Unflinching Vest, the appearance and dye slot do not appear whatsoever.
The gear mod slot on the vest either shows up on a random part of my screen ( https://imgur.com/7A9G0DH in the top right), or it doesn't show up whatsoever ( https://imgur.com/67MG27h ). I can select my gear mod slot and equip gear mods by pressing the select key, but I am unable to select my appearance and dye slots.
I have tried changing armor pieces and restarting my game (multiple times), but I still currently have this issue.