I have noticed as I play through the siege of pairs DLC the scythe weapons in the game sound a little off. When you are just swinging a scythe through the air and nothing else everything sounds good, but once you start attacking enemies everything starts to sound off. At parts, it sounds like your scythe is hitting the enemies, but for most of the playtime, there is no sound at all when hitting an enemy.
My Platform is Xbox Series X
Below are video clips showing what is happening