Hey,
i was playing around with the new snapshot and saw this.
Bugg 1: if you let a piston go realy fast with a slime on his face and a redstone block on it the arm of the piston will come out of the back and the hitbox to.
Bugg 2: if you let grass go left to right realy fast you see the side texure on top.
One issue per ticket please and search before creating tickets. All of your issues are already reported.