Emotes and Backpiece/Weapons
Its part of an ancient system, where clipping used to be a consideration in art and animation for the game. What you describe with reequip is actually a flaw in the game code; and while it can be entertaining to exploit, its not supposed to happen.
its been so long, everyones just kind of caring about it.
Even if it’s an exploit, I honestly still prefer it. Hopefully it’s a future implement for the game.
You can also see your weapon/backpiece if you go into first person and then come back out.
Yeah, it’s silly that they just disappear like that. Looks really weird.