Fixation stacks do not show the number of stacks on the icon as before the patch on either creeps or heroes with default healthbars (ie not using the experimental healthbars)
With high spirit/duration, Haze's smoke bomb exhibits strange behaviors when near the end of the effect. She'll keep her sprint speed but it will be lockstepping, in that she jitters constantly, but will be fully visible even outside of smoke bomb's reveal radius.