When I join my partner in Co-op and we go into a run, I've noticed that every time I melee, my character completely stops moving for a second or 2, almost like the melee saps all of his speed for a moment. I've also noticed that the same thing happens when my partner melees me, however it does not affect my partner in any way. Additionally, when I'm within the range of an exploding barrel, it causes me to completely lose all speed and I have to quit and rejoin the session to resolve it