The Death Scythe has a graphical bug where the blade of the scythe has shifted position downwards when holstered, making the tip of the blade glitch into the hilt and a black spot, that would normally be hidden within the "head" of the scythe visible.
https://i.redd.it/jy1wrzg8nn891.png
(Picture is not mine. It's takes from a Reddit post. But it clearly shows what's wrong)