[CheeToS2]

Lance, Nappa and I investigated this on N-Pulse.
When getting hit in v4, it counts players as walls, so you don't get within 1 tile of a player after sliding. v2 doesn't count players as walls, so you might land too close to them. In v4, if you are hit when you are less than 1 tile away from a player, you don't slide (it thinks you're already on a wall). Once v2 is disabled, you shouldn't notice the problem anymore.