Bug: If you die on the log next to the grave yard, when you respawn the animations are normal speed but the movement is stuck at the speed on the log.
To recreate, enter the graveyard then run back to the log and where you are then trapped because the zombies gather at the end of the log if you come back to the grave yard. They should kill you before you get off the log.
I've seen this one recently in a vid actually, never thought players would run backwards, that's for sure! Thanks for bringing it to my attention, there's a small list of things like that I'd like to fix one day, as of right now though my focus is on my next project but someday it might get patched :D