Sprint + heavy attack

iCaliban

@Arcanasx found this

Sprinting during a heavy attack results in stamina drain after the heavy attack with no sprint boost, just normal walking behavior

Arcanasx

Can confirm, I noticed it after the Monday patch so the bug was probably introduced that day. There's also some strange things that can happen with stamina regeneration and even your character will sometimes be stuck in an animation glitch if you let your stamina bar fully drain from doing this.