It looks like KAY/O grew up with Brimstone before becoming a robot. They played the same sports and worked the same jobs together as well. Why do I think it's KAY/O? Even before the VERSUS // KAY/O+BRIMSTONE card was released (See next pic...

I've seen this a lot since Skye was released, pretty much only in reference to the noise her flashes make. It doesn't even make sense considering the fact that they are different. Remove the noise and they are still very different then ever...

so i just unlocked the knife, and i pressed equip. then i went to collections and saw that it didnt show as unlocked so i equipped the vanilla knife to check if that fixed it, and now its like its locked. i cant equip it. any tips?