Path encoding: Sometimes the 4 arrows give an error.
I can't consistently reproduce it yet.
On "Path encoding", I've seen it happening twice on the 4th level and once on the 5th level: at the initial position of tux. the 4 arrows are "buzzing wrong" and tux don't move (and the error count increase).
It can't be right as it's the absolute variation of the path encoding so at least one of the arrows should work.